radi dealer gn7 - WorldRadioHistory.Com...business at this time. Any local office of WPB will advise...

radign7dealer

rc

Thisstone:

Phonograph-thanger Repairs

Record Sales - Rental Radios

Wire Recur dingAugust, 1944

25e

There's Little Enough Time

o Do a Service Joh the First Time

SPENDING valuable man hours to do ajob over because a replacement part

has failed wastes your time and money,uses critical material and helps to hinderAmerica's war effort.

Your service work can be only as goodas the replacement parts you use. By using

Mallory parts, you avoid the danger offailure and the necessity of re -doing a job.

Whenever the repair calls for volume

And No TimeTo Do It Over!controls, vibrators, capacitors, switches orresistors, use Mallory replacements andbe safe.

Years of outstanding service and a rep-utation for long life and dependabilityin the replacement field make Malloryparts the right parts to do the job rightthe first time.

They're available through Mallory distrib-utors from coast to coast.

P. R. MALLORY & CO., Inc., INDIANAPOLIS 6, INDIANA

MYE TECHNICAL MANUAL-408 pages of complete data oncapacitors, noise suppression, re-ceiving tubes, loud speakers.vibrators. phono-radios, auto-matic tuning and other valuableinformation. Available from yourMallory distributor-Price 82.00.

4TH EDITION RADIO SER-VICE ENCYCLOPEDIA...Complete information on repair-ing any make or model of re-ceiver. Circuit references, originalpart numbers and recommendedreplacements. Available fromyour Mallory distributor ...Price, 95 cents.

Your Wisest Investment-Government War Bonds

MINIATURES

BROADENING YOUR FUTURE MARKETS

AND

The 17 RCA Miniatures shown on thispage-all of them destined to build abigger business for you in the future-are:

1A3-H-F diode1 L4 -R -F amplifier pentode

R5 -pentagrid converter153 -diode -pentode1T4 -R -F amplifier pentode3A4 -power amplifier pentode3665 -H -F twin triode

6AG5-R-F amplifier pentode6ALS -twin diode

6M:16-Duplex-diode High -Mu triode6C4 -H -F power triode6J4 -U -H -F amplifier triode6J6-twin triode

9001 -Sharp cut-off U -H -F pentode

354-power amplifier pentode 9002 -U -H -F triode9003 -Super -control U -H -F pentode

TOW tubes like these ... every single one of them developed

by RCA ...were first picked up by the spotlight when the"Personal Radio", was announced in June, 1940. Thathistory -making "super -portable was designed around RCA's

staunch little quartet, Miniatures 1R5, 1S4, 155 and 1T4.

Thus, before Pearl Harbor, these Miniatures were already

building an entirely new market for you. For they madepossible the new type of radio which John Public wanted...not as a replarPment for his conventional radio, but as anadditional set. And Miniature sets meant profitable battery

replacements, too.War found RCA Miniatures instantly available for overseas

DEVELOPED BY RCA!

service in equipment such as the paratrooper's air-borne"Handle -Talkie?'

Once Victory is won, radios using Miniature tubes willreturn to your line...better than ever, and more popularthan ever. For wartime advances in RCA tube engineeringhave already led to the development of many new Miniaturetypes and even better Miniature performance.

We look forward to that day, and to the continued broad-ening of your markets through RCA tube pioneering.

Don't forget, the Magic Brain of all electronic equipment isa Tube...and the fountain -head of modern Tube development

is RCA!

BUYWAR

BONDS

RADIO CORPORATION OF AMERICAIN, N.

A . . TelevisioPhonogreohi Reedrds. Flectremics

August, 1944

611 sorry, Mrs.)Ooplewoop,

66t on account

of- sbortap,eochelp

ancl materials,it will

take me aboutfour

weeks. to reel,'

\--\ yourradio

Americans arenot sissies.

When

they know the truth,they can take

it--especiallywhen it relates to

the war.It's only when

somebody triesto

fool them,that they rear up

on

their hindlegs and yowl.

So, you canafford to be frank

and honestwith your customers

about probableslowness

of de-

livery, inferiorityin details of

repairs and yourother possible

wartime shortcomings.

1HK IS JUST

A TEMPORARYPERAIR.-Nicn-THE WAY

lb URETo DortTHE WAR,

you

KNOW

You don'thave to be ashamed

of

them or to fib aboutthem. Every-

body knowsthere's a war and that

Hitlerstarted it--not you.

The onlymistake you can make

is

to give promises youcan't keep,

or do aninferior job

that you

don't explain tothe customer.

Your customerswill even like

you better forputting all your

INTERNATIONAL

cards on the table,and remember,

customerswill count

again, buy

and buy. Keep themfriendly for

those selling daysto come.

Even yourdistributor may have

to turn you downoccasionally on

InternationalResistance

Units.

But he'spretty sure

to do it

pleasantly,with the

result that

you'll understandhis position

based on thecontinued

need for

I R C resistorsin vital war

equipment.

No. 7 in a series ofspecial messages

pre-

pared by America's famousbusiness writer,

humorist andcartoonist, Don Herold. .

. In

sponsoring theseDon Herold "broadcasts,"

I R C paystribute to the thousands of

Radio

Service Men who, wheneverpossible, specify

and use I RC resistance unitsin their work.

TANCE. nears typos e+.

hiladelphio 8, Po.ance units, in more shapes, for more applications than any other manufacturor In the world.esist

No. 2 ÷Tube Complement Book

350

No. 3 -*CharacteristicsShot

FREE

No. 4-*Correlation ofTube Types forSubstitution Chart

FREE

No. 5*Sylvania BaseChart

FREE

JUST 70¢ BUYS:

I'Vestievtawits and T ailYesterday, WARD antennas wire foLnd on most of thepeacetime aucrnopiles, radios and portable radios.

All of the manufacture of antennas ainc:radEr zquipm?.nt of THE WARD PRODUCTSCORPORATION is, today, going entire!), -o tht,sitai-tittiri and being used on allfighting fronts.ThcAnowledge that is beiia proved products

specifying of an

THE WARD PRODUCTS CORPORATION

gained f-orn warti-ne effort will menrt-nc\,eacetimw. If your- postwar planning includes, look to WARD

1523 E. 45T4 STREET, avinao, OH,

4 Radio Service Dealer

with the editor . . . . .Victory Prediction

WHEN THE RADIO MAN-UFACTURERS Associa-

tion Convention was held at Chi-cago in early June all of the in-dustry's leading lights attended.Without doubt, the most talkedabout subject was reconversion tonon-military production.

At the Radio Industry BanquetMajor General William H. Har-rison, Chief, Procurement & Dis-tribution Service, U. S. SignalCorps, opined that if Germanycan be forced out of the war dur-ing 1944 it is probable that a por-tion of the radio industry's manu-facturing facilities will be made

Would-be Servicers Can't Get StartedBECAUSE OF WPB's Limita-tion Order L-265 it is practicallyimpossible for anyone to estab-

business at this time. Any localoffice of WPB will advise awould-be servicer that he may ap-ply for and create an inventory ofcomponent parts-but the catch isthis: jobbers haven't sufficientparts on hand to meet their oldcustomers' needs, so it is ratherunlikely that they will be able totake care of a new -corner's re -

Radio & Appliance DistributorshipsMANY BIG manufacturers arenow sending field men out to con-tact potential post-war distribu-tors. Dealers have a galaxy oflines to choose from but surveysindicate that only a few dealerswill desert the retail field for thatof wholesaling.

On the other hand we learn thatmany parts jobbers are lookingahead and seek lines for whichthey can become distributors.(The difference between a Jobberand Distributor has always beenclear-cut in the minds of mostradio-appliancemen, for Jobbersare considered to be wholesalers

Elavailable for civilian productionPr during early 1945.

The General did not indicatehow a resumption of civilianradios might be accomplished . . .whether certain manufacturerswould be assigned the job of mak-ing "Victory Models", or whetherall producers would be givenquotas. As long as the war con-tinues radio production must beof a military nature exclusively,but, plans are being considered byWashington for resumed civilianradio and appliance making . . .and it looks as though Germanywill be out of the war very soon.

quirements, especially for tubes,resistors, test equipment, etc.

In a nutshell, while the partsnew -comers will

have to take jobs with establishedfirms for the chances of their get-ting an inventory with which tostart a new business is practicallynil. And in this vein, it is inter-esting to note that several thou-sand World War II veterans havealready been mustered out of serv-ice with honorable discharges andexcellent radio training.

of parts while Distributors havebeen considered those who whole-saled radio receivers and majoror minor appliances).

Without doubt many Jobberswill continue to function as theyhave, handling small parts and ac-cessories, and in addition theywill henceforth also wholesaleminor appliances. So, now theword "Jobber" becomes obsoleteand in its place the more distinc-tive title of Distributor will becommonplace.

fietza,eiOrel: st. 1.: :1

Samoa 7he 7474q4Being a condensed digest of some of the happenings inand around the radio trade as compiled by the Editors

Show window displays animated models in war -front positions with HallicraftersSCR -299, mobile radio receiver and marine radiotelephone unit, during recentRadar.Radio show at Lyon & Healy's store, Chicago. Other exhibitors: GalvinMfg. Corp.; Capehart Div., Farnsworth Television & Radio Corp.; MagnavoxCorp.; RCA -Victor; Sentinel Radio Mfg. Company, and a number of miscel-

laneous firms.

FM SpreadingRecently FM's inventor, Major E. H.

Armstrong, General Electric's Dr. W.R. G. Baker, and Walter J. Damm,president of FM Broadcasters, Inc.,discussed FM and television before theAmerican Newspaper Publishers As-sociation's convention. Up to now closeto 200 applications for post-war FMstations are on file with FCC, many ofthem from big-time newspapers.

According to a survey completed byFM Broadcasters, the potential marketis so great that manufacturers expectto produce around 20,000,000 receiversin the four years following the end ofthe war.

Standard broadcast networks are in-creasing their FM facilities. Twenty-one stations on NBC's network also op-erate FM and twenty more have filedfor permits with the FCC. WOR-Mu-tual has twenty-three FM -casting andexpects to add more. There are nowtwo FM stations on WJZ-Blue, withtwenty-seven on application; and CBSnow FMs on eleven stations with thirty-five more to come.

The rush of applications for con-structing radio stations is at a peak,

though more and more are expectedas war's end approaches and materialsare released. FM applications now topthe list three to one. In all, around$10,000,000 may be spent post-war foradditional and new FM transmittersand facilities.

P -A for 130,000 FactoriesRadio Corporation of America's In-

dustrial Music Service announcesthrough Philip J. Jacoby that many in-dustrial P -A installations will be usedto broadcast music to workers. Afterthe war, according to Mr. Jacoby, asmany as 130,000 plants and factoriesmay require these systems, which ra-dio dealers and servicemen in variouslocalities should be called upon to in-stall and service.

Crosley AppointsLee Stratton, formerly district man-

ager for Nash-Kelvinator, is appointedManager of refrigeration of the manu-facturing division of the Crosley Cor-poration, announces J. H. Rasmussen,Commercial Manager.

B. T. Roe, Manager of Distribution,

announces appointment of three newdistributors of the Crosley Corporationin the Dakotas: Western Auto PartsCompany, Cave Supply Company andAberdeen Supply Company.

Ben T. Roe, manager of distributionof The Crosley Corporation announcesthe appointment of Eads Bros. Furni-ture Company, Ft. Smith, Arkansas asdistributor in the western Arkansas andthe eastern Oklahoma territory. Thisfirm has been handling major householdappliances since 1929.

O'Donnel-Dunigan Company, Inc.,distributes for Crosley in the Rochesterterritory. Service and parts depart-ment will be handled by Harold Hoepfiand James Stevenson.

Crosley's southeastern South Caro-lina distribution will be handled byCarolina Electric Appliance Company,located in Georgetown and Charleston.

Maine distributor for Crosley isGraybar Electric Co., Inc., which willhandle the full line of radios and re-frigerators and a complete line of partsfor service and repairs. The distrib-utor operates over 80 main and branchoffices, warehouses and display roomsthroughout the country.

"E" to Universal MikeUniversal Microphone Company,

Inglewood, Cal., was recently awardedthe Army and Navy "E," together withproduction pins to individuals in theplant.

Harold Ranier

Sylvania Promotes RainierC. W. Shaw, General Sales Manager of

the Radio Tube Division of Sylvania Elec-tric Products, Inc., has just announced theappointment of H. H. Rainier as AssistantManager, Distributor Sales, Radio Divi-sion.

In his new post, Mr. Rainier will beresponsible for merchandising activitythrough Division Managers in all terri-tories and will report directly to R. P.Almy, Manager of Distributor Sales, RadioDivision.


ALL EYES ON MT. CARMEL!

On Guard! Symbol of watchfulness at the Meissner plant isthis alert, keen -eyed sentinel. All prying eyes are kept at asafe distance, but there's no hiding the fact that greatthings are in the making here.

Testing: These two men pack a world of electronics knowl-edge behind youthful faces. They literally "grew up" inthe business-thanks to the fact that there are moreelectronics technicians per thousand population in Mt.Carmel than in any other city.

Meissner's"Precision-EI": Long experience, plus "home town"enthusiasm for the job, have so astonished visitors thatthey refer to Meissner's personnel as "precision -el." AndMeissner's "precision -built" products prove the case!

What New Marvels these girls have seen! They're on the inspecting line atthe Meissner plant in Mt. Carmel, Illinois, source of numerous major wardepartments in the electronics field.

ILLINOIS ELECTRONICS CENTER

HUMS WITH FUTURE PROMISENearly everywhere you look these days - in America's news-papers or magazines - you're apt to find a glowing referenceto Mt. Carmel, or to the Meissner Manufacturing Company.That's because the little Illinois city and its largest industryare both in the forefront of important postwar thinking. Hubof much of this activity is the Meissner laboratory, whichoccupies an entire floor of the main office building. There areso many closely guarded secrets here, in fact, that no photog-rapher dares set tripod inside!

Wide Range, High GainHere are the famous "big four"benefits of Meissner "Plastic"I. F. Transformers: (1) wide range ;(2) high gain; (3) remarkable sta-bility; (4) double tuning. They'reparticularly suitable for use insmall receivers, where space is at apremium, yet superior perform-ance is required. Only 13,i " squarex 2!z", yet are not affected bytemperature, humidity or vibra-tion. Complete with speciallyserved Litz wire and one-piecemolded plastic coil -form andtrimmer base. Now ready for de-livery, but order promptly.

fISS1V1111MANUFACTURING COMPANY MT. CARMEL, ILL.

ADVANCED ELECTRONIC RESEARCH AND MANUFACTURE

August, 1944

Radio enters play-by-play sports re.porting with this Handie-Talkie madeby Motorola. Other possible "entries"for this equipment: police departments,

newspapers, fire departments.

NotesH. C. Huebner, former Frigidaire dis-

tributor, joins Harry Alter Company,Chicago, as Sales Manager of the appli-ance division, with the addition of Cros-ley Appliances and Coleman Heatingproducts.

Admiral Appoints RogovinSidney H. Rogovin, formerly Assistant

to the Vice -President in charge of theElectrical Division of Stewart -WarnerCorporation, is now associated with Ad-miral Corporation as Eastern RegionalManager.

In making this announcement, J. H.Clippinger, Vice President in charge ofsales, said Rogovin brings to Admiral acomplete knowledge of Stewart -Warnermerchandising and distribution which isnow being incorporated into the company.

Sidney H. Rogovin

Mr. Rogovin has a wide acquaintance inthe radio and appliance field and knowsthe Eastern territory thoroughly, havinglived and worked there for many years.

RCA Accepts 17,000 IdeasPost-war radio, radar and electronic

products and equipment will be all thebetter for the tens of thousands of ideasto save time and material submitted byworkers since Pearl Harbor. RadioCorporation of America announces itadopted as many as 17,000 such ideasfrom workers in its plants.

Sylvania Honored by U. S. NavyWithout interrupting the production

of its electronic devices, Sylvania Elec-tric Products, Inc., raised a new produc-tion award flag with a third star overthe Radio Division plant in Emporium,Pa., in an informal ceremony.

B. G. Erskine, chairman of the boardof Sylvania, received the new honors.The original "E" award was accepted ina formal ceremony in '1942, and thefirst and second stars were awarded in1943. Five Sylvania plants now flythe "E" Burgee.

Carter Motor's Postwar PlansRobert W. Carter, Managing Direct-

or, Carter Motor Company, Chicago,announces definite plans for post-warproduction. "Contrary to popular be-lief," stated Mr. Carter, "the post-waruses of portable hand generators willmore than equal those of the presentmilitary requirements. The develop-ment of this electric power source hasbeen greatly advanced by the war, andthe public will benefit."

To present the story in detail to theradio and allied trades, Magazines, Inc.,of Chicago has been appointed publicrelations counsel. An extensive adver-tising schedule is being planned.

Robert W. Carter

Richard C. Carr

Westinghouse Names CarrG. Edward Pendray, assistant to

President of the Westinghouse Electricand Manufacturing Company, an-nounces the appointment of Richard C.Carr as manager of institutional adver-tising. He will handle institutionalcopy, radio commercials and public rela-tions production.

"E" to Stewart -WarnerThe Green River Ordnance Plant,

Dixon, Ill., operated by the Stewart -Warner Corporation, has been awardedthe Army -Navy "E."

Bailey to OperadioF. D. Wilson, Sales Manager of Com-

mercial Sound Division, announces thatFrank A. Bailey joins sales engineer-ing staff of the Operadio Manufactur-ing Co., St. Charles, Ill. In line withWPB's recent approval of sound equip-ment for war plants, Mr. Bailey willassist in field engineering.

Ray H. Manson

Up from "down under": Dr. Ray H.Manson, vice president and generalmanager, shows Stromberg-Carlson'ssharp rise in wartime radio, radar andcommunications volume which reached$27 million for first half of 1944. Act-ual rise is more impressive than totalshows because prices were lowered

8 Radio Serrice Dealer

BEFORE THE WAR

YOU SOLD THESE

ELECTRONIC TUBES

- Meta. Radio Receiver Tubeb - Glass Radio Receiver Tube

AFTER THE WAR

YOU WILL SELL ALL THESE

A - Ignitron (for resistance -welding control, and converting a -c to d -c). B - Thyratron(for Industrial equipment control). C - Phototube (for counting - sorting - grading).D - Cathode -Ray Tube (for television receivers and measuring instruments). E - MetalRadio Receiver Tube. F - Glass Radio Receiver Tube. G - Phanotron (for electronic heating).

r

1 ODAX more and more war productionproblems are being solved by the increasinguse of the electronic tube.

Resistance welding, electronic motor con-trol, electronic brazing and soldering, hard-ening and annealing - these are but a fewof the new ways in which the electronic tubenow is serving war industry . . . paving theway for a tremendous post-war market . . .when better products of peace will be pro-duced in greater volume than ever before. . . by electronic means.

General Electric is manufacturing nearlyone million dollars' worth of electronicequipment every day for the armed forces

and war industry. General Electric is in-forming industry about electronic methods.Thus, General Electric is helping to buildyour post-war electronic tube market-NOW! '

The radio service man of today-who willbe the electronics maintenance man of to-morrow-can count on General Electric forthe peacetime production of the world's mostdependable electronic tubes. . . . ElectronicsDept., General Electric, Schenectady, N. Y.

Tune in General Electric's "The World Today" andhear the news from the men who see it happen, everyevening except Sunday at 6:45 E.W.T. over CBS. OnSunday evening listen to the GE "All Girl Orchestra"

at 10 E.W.T. over NBC.

THERE'S A G -E ELECTRONIC TUBE FOR EVERY PURPOSE

GENERAL ELECTRIC

SPRAGUE TRADING POSTA FREE Buy -Exchange -Sell Service for Radio Men

ASKFOR

THEM BY NAMEIf you appreciate the TradingPost Advertising Service - andhundreds of servicemen have toldus that they do -we know wecan count on you to ask forSprague Atom midget dry elec-trolytic capacitor, by name, andto insist on getting them when-e ver they are available. Atomsare smaller, less costly, and arefully as reliable as the big, old-fashioned condensers they re.place. Use them universally one ll of your jobs. They're moredependable -they speed up your

work!

WILL TRADE -Hard -to -get tubes, parts,and cash, for urgently needed giant rot-tohmmeter (6" to 8" meter) with volt-age ranges up to 750 v. ohms up to 5meg. Or will pay all cash, if desired.Byron Radio Shop, Byron. Ill.

URGENTLY NEEDED - Small V -O -M,in good working condition, Joe Trout-man, 1528 Mass. ave., S.E.. Washing-ton, D. C.

FOR SALE -Precision 900 portable mul-titester in perfect condition; Superior1230 sig. generator, mfg. manuals; G.E.,RCA, Zenith, Crosley Majestic andmany others. Robert Newman. 131 Lin-coln Rd., Brooklyn, New York.

FOR SALE-R.C.P. multimeter R -55 -checks voltage. A.C. and D.C. current,capacity, resistance, inductance, reac-tance, decibels. $37, C.O.D. J. Ellert,1429 Corbin Ave., New Britain. Conn.

FOR SALE -The following microphones:1-38 Turner Crystal, hi -imp., used, goodcondition $10; 1-111311 Amperite velo-city. new, hi -imp, on -off switch, Ac-coustic compensator, good condition $35;1 -RAH Amperite velocity, hi -imp., A-1condition, $13; 2-electro-dynamic 10"speakers, 4.8 ohm c.c.. 2$00 ohm Le., $7each. Hacimman Sound Service, 1208Lee St.. Jefferson City, Mo.

WANTED -FOR CASH -Vac. tube volt-meter. J. Allen DeWald. Route #3,Danville, Pa.

FOR SALE -Guaranteed tubes. 1 each,1E5G. 1E7G. 1G6G. 1LA4, 1LB4, 1LH4,1LN5, 1N6G, 2A3, 3A4, 5V4G, 6A3,6A6, 6B4G, 6B7S, 6C8G, 6D7Maj., 6F7.6380, 6K8G, 6L6G 6N7GT, 6SN7GT,12A5. 12SL7GT, 12SN7GT, 25C6G, 357,3,50Y6GT, 82, 117L7GT, 117Z6GT. Good-win Radio Shop, Rankin, Ill.

WILL TRADE -Automatic record chang-er and recorder, with pre -amplifier (See -burg,) for spray gun, compressor andmotor for light spray paint work. Wantseveral used or burned out Delcoh.p. motors. Billy Lee Azbell, 1921South 7th., Waco. Texas.

WANTED -Triplett tester 1620 or equi-valent tube checker; Radio City 703 sig.generator or equivalent; tubes such as12A8, 12SA7, 12SK7, 12507, 35Z5, 35L6.50L8, 1H5, 1A7. Robert W. Steger,2202 State street, Abilene, Texas.

FOR SALE-Readrite tube checker #30,window display motor (four spring).magnetic cutting bead, radio parts, etc.Want heavy duty output transformer for6L6, prefer 6,600 ohms prim. or 20-30watt amplifier. Pleasant Valley RadioService, Armstrong, B. C.

EQUIPMENT NEEDED IN SOUTH-WEST PACIFIC -Communication re-ceiver; 20- to 30 -watt amplifier. speak-ers; mike; Dhoti° pickup and motor anddual speed unit. Cash waiting. De-scribe fully vie. air or V -mail. R. L.Hawks, CM 3/c, 80th Seabdes, c/oFleet Post Office, San Francisco, Calif.

FOR SALE-Audax microdyne phono-graph pickup, #L-18, for records up to16". High fidelity magnetic, light weight.brand new, $39.50. Carl Hovland, 3502Gunston Rd., Alexandria, Va.

FOR SALE -#E-3800 Hickok tube tes-ter with adapters and charts, $20. Eu-gene Ray, Box 813, Glennsferry, Idaho.

WANTED FOR CASH -Hickok 510X or530 C dynamic M. conductance tube tes-ter, and 913 1" cathode ray tube. RolandChang. 1217 Calhoun, Fort Wayne 2,Ind.

FOR SALE -New Instructograph, com-plete with 10 rolls American Morse tapeand instructions. $16. D. H, Hazel,Bronson, Mo.

WANTED-Hallicrafters #29 Sky Trav-eler or any other good short-wave com-munication set. L D. Pritchard. P.O.Box 320. Pittsfield, Mass.

FOR SALE -0-24 Phllco cos.; #550Readrite osc.; Philco condenser tester;Philro DayRad tube checker; severalMajestic elec. dynamic speakers; Zenithradio nurse (new); new and used tubes;Rider manuals 1 & 2. Gouma ElectricShop. P.O. Box 38, Dorchester, N. J.

FOR SALE-Rimco dynalizer, like new.Home Radio Service, Box 45, Plymouth,

FOR SALE -21% off list, 3-024, 3-1E7,3-1E5, 1-6A4, 1-6A6, 1-6L6, 2-627.4-7E6, 5-7H7, 3-7N7, 3-12.15. 2-12SL7.4-31, 1-46, 1-50. 1-81, 1-X99, 1-85,1-112A; also Coyne Reference Set, $5.George's Radio Shop, Box 695. CrystalCity, Texas.

FOR SALE -Transmitter tubes, 75T,gammatrons, rectifiers, etc. Large powersupplies, modulation transformers, me-ters. chokes, steel cabinets, unused vari-able transmitting condensers. etc. Serv-ice Mgr., Richmond Appliance Co.. 207Clement St., San Francisco, Calif.

FOR SALE-Readrite tube tester #430,in A-1 condition. $20 f.o.b. S. It.Richards, 519 E. 7th St., Duluth, Minn.FOR SALE -G. I. recorder and play-back unit with 10" record changer, butno mike, amplifier, or cabinet. Excellentcondition, needing only adjustment. $66,C.O.D. Kenneth Halpin, 314 HumphreySt,, New Haven, Conn.

IMPORTANT NOTICE!We discourage offers to buy or sell

anything beyond the C.P.A. ceilingprices, and will not knowingly acceptsuch ads for the Sprague Trading Post.

WANTED -9', meter. Advise sensitivityand scales, Leo E. Baer. 40 Broadway,Meyerdale, Pa.

FOR SALE -Triplett #1503 multi -pur-pose tester including 18 -range AC/DCV -O -M. condenser checker and tubetester. Oak case. $45. Alfred Smeland,36 Midway Oval, Poquonnock Bridge,Corm.

SWAP OR SELL -Radios and parts.Want 34" electric hand drill, typewriterand tube tester. A. Zises, 92 Grahamavenue. Brooklyn. N. Y.

SWAP OR SELL --Garrard 1 -oz. crystaland magnetic phono pickup. Want 6SS7tube; Audax microdyne pickup; 12", 15"or 18" Cinaudagraph speaker; micro-phones; 8 mm movie projector. N. P.Fortier, 293 Jefferson Ave., Salem, Maw.

WANTED -Late model tube checker.Terry Radio & Sound Service, 79 Mc-Arthur Dr., S. Norfolk, Va.WANTED -Supreme 504-A; Hickok 188XB.G.; and Rider chanalyst. Harry W.Francis, 3602 Patio P1., Los Angeles 32.Calif.

FOR SALE -1941 Phileo auto radio, al-most new, $35; 1937 Delco auto radio,$20. Want Oct. and Nov. 1937 andNov. 1938 Radio News. Paul Capito,637 N. 21st St.. Erie, Pa.FOR SALE OR TRADE -Will swapKeystone "C" 16 mm. hand crankedmovie camera. in A-1 condition for25Z6-GT and 25A6-GT or 25L6-GTtubes. James S. Messier, 835 BerkeleyAve., Trenton 8, N, J.

FOR SALE -#162-C RCA Rider chan-alyst, #600 Precision electronometer andtube tester; and #682-R Weston tubetester. Marietta Radio Supply Co.,Marietta. Ohio.

FOR SALE-Operadio 15 -watt amplifierwith tubes, less speaker, $20; 15 -wattamplifier with tubes and 12" dynamicspeaker (needs new cone) on separatechassis, $15; 3-5" dynamic speakers,less output trans.. 3 new code practiceoscillators with speakers, $10, each. DonLinder, 207 Walnut ave.. St. Charles. IlL

URGENTLY NEEDED - 2 Wunderlichtubes for overseas use in Scott radio.Edward Heimann, EM 1/c, 51 N.C.B.Co. C-2, A.B.R. Barracks. Port Hue-neme, Calif.

WANTED-Philco 030 dynamic tester,in good condition. Sunnyside RadioShack. 341 E. Pearl St., Burlington,N. J.

FOR SALE -3-885, and 1-2051 tubes.Slightly used. test perfect. $5 for all.Mac Green, 504 Washington Blvd.,Chicago 4, Ill.

WANTED -Test equipment, meters, andRider manuals. Carlo D'Angelo, 273Pulaski St., Mariner's Harbor. StatenIsland, N. Y.

WANTED-Voltolimmeter or tube andset tester with 3" or larger meter, alsodirect reading sig. generator. WayneGmnt, Rt. 2, Box 1412, Turlock, Calif.

FOR SALE OR TRADE -Pickup arm,$4; Crosley record changer, $20; Std.Trans. Co. A supply -7 v @ 6.5 amps$15; B. eliminator. $5; A. eliminator.$6; Mallory dry disc rectifier, $2; newbakelite panels, 'A" x 31" x 23", $10ea.; Gen. motor, $5; 8" Utah speakers.$3 and UP; 15 v. miniature bulbs, 10eea.: prs. headsets. Utah & W. E. $2pr. Want tubes or sig. generator. TedSolara, 3033 S. Pulaski Rd., Chicago23. Ill.

FOR SALE -4 RCA #156 tube checkers(new), $30 each. Want sig. generatorB&H Radio Co., 77 Waverly St.. Provi-dence 7, R. I.

URGENTLY NEEDED -New 50, 35, and12S series, 1A7, 1N5 tubes; also moderntube and set tester. C. W. Stephens.407 Third Ave., Columbus, Ga.

FOR SALE -Supreme 529 rreoueneTmodulator and Clough Brengle CRB 3"scope. Fine condition. $55 for both.Sohn E. Thompson, 1440 W. 47th et.Chicago 9, Ill.

WANTED -2 106(3 tubes. H. L. Dater.Natchez, Miss.

FOR SALE -6-6, Fox aluminum trum-pets, 5 -4th' trumpets, 4 Fox 6v units.

Recoil 6v units, 12 Western Electric'6v driver units. Want Rider manualvol. 1. Poaque Radio & Sound Service,1603 Grand Central Ave., Tampa 6, Pls,

WILL TRADE-12SQ7, 12SK7, 12SAT.501.6 tubes, used for crystal pickup orelectric phonograph motor and turn-table. Cpl. T. G. Espinoza, ASN39691672, 23rd ARCS, Army Air Field.Kearney, Nebr.

WILL TRADE -New S. G. 43 sig. gen-erator for late model tube tester. Also76-8B7, 39/44, 84/6Z4, 33 2A7 tubesfor 1A7, 1N5, 1115. Johnnie Mc.Leridon,228 E. 4th St., Lumberton, N. C.

YOUR OWN AD RUN FREE! -This is Sprague's special wartime advertising service to help radio

men get needed parts and equipment, or dispose of radio materialsthey do not need. Send your ad today. Write PLAINLY -hold it to 40words or less. Due to the large number received. ads may be delayeda month or two, but will be published as rapidly as possible.

Different Trading Post ads appear monthly in Radio Retailing -Today,Radio Service -Dealer, Service, Radio News, and Radio -Craft. Spraguereserves the right to reject ads which do not St in with the spirit ofthis sere ire,

HARRY KALKER, Sales Manager.

SPRAGUE PRODUCTS CO., DEPT. RSD-84, North Adams, Mass.(Jobbing distributing organization of products manufactured by SPRAGUE ELECTRIC COMPANY)

SPRAGUE CONDENSERSKOOLOHM RESISTORS

Obviously, Sprague cannot assume any responsibility, or guarantee goods. services, etc.. which might be exchanged through the above advertisements


BETTER Trade Standards

Mean BETTER PROFITS

EVERYBODY is snaking resolutions for post-warfair-trade standards . . . But what about someof that fair-trading now? Some essential oper-ating standards for wholesalers and dealers.

T doesn't take a very long memoryI for dealers to recall that the mer-chandising evils that crept into the ra-dio and appliance business before thewar were wiped out only with the vir-tual disappearance of new products. Sowhat about after the war, with mer-chandise again available?

Recognizing that dealers' problemsare bound up with the way wholesal-ers operate (and vice versa), a groupknown as the Wisconsin Radio, Refrig-eration and Appliance Association hasissued a report in which essential tradestandards are suggested in simple lan-guage.

Here's what they propose the whole-saler might profitably keep in mindwhen dealing with dealers:

1. Making the dealer's best inter-ests his first consideration.

2. Giving preference, when appli-ances are again available, todealers who survive the war pe-riod.

3. Using care in selection of anynew post-war dealers.

4. Recommending to his manufac-turers the importance of shorterlines and fewer overlappingmodels.

5. Working towards elimination ofall retail selling at wholesaleand special discounts to individ-uals.

6. Welcoming suggestions fromdealers that will bring aboutbetter cooperation.

7. Keeping dealers informed ofnew developments in productsand merchandising methods, andproviding special training fortheir salesmen and servicemen.

And the dealer might subscribe morefully to the following operating stand-ards:

1. Having the courage to refuse tosupport any distributor whodoes not play fair and square.

2. Adherence to fair competitivepractices.

3. Not asking for special protec-tion from his wholesaler if hehimself is not fulfilling his ob-ligations with respect to fairdealing.

4. Dealers and their salesmen andservicemen should attend fac-tory and jobber -sponsored edu-cational and merchandisingmeetings.

"I'd like to buy your radio, lady,but I can't get any tubes either!"

5. Contact of customers immately after the installation oradio or appliance, to instruthe customer in its use.

The foregoing points to trade evilswhich no code of ethics can in itselfcontrol or eliminate in a way thatcounts. The association is thereforeforming a joint committee consistingof both wholesalers and retailers whichwill meet at regular intervals. At thefirst appearance of an undesirable tradepractice-on the part of either a whole-saler or a dealer-which threatens thegeneral welfare of radio and appliancemerchandising and servicing, the com-mittee is empowered to take drasticsteps if necessary, to stamp out thethreat at the very start.

In the same vein, the specific trade -practices to which dealers and whole-salers are tending to subscribe in an-ticipation of post-war competition aregiven in a booklet issued recently forits dealers by A. A. Schneiderhahn Co.of Iowa. At least seven trade "don'ts"are listed:

1. Wholesalers selling direct tousers.

2. Retailers selling at less thanestablished list prices.

3. Granting excessive trade-in al-lowances.

4. Guarantees made by retailerswhich extend servicing beyondthe regular warranty period.

5. Special prices to groups of em-ployees, by wholesalers or re-tailers.

6. Maintenance of a "free" repairservice.

7. Extending credit to poor risks.All of this is all right, and promises

well for "tomorrow" as far as it goes.But how about now? Dealer groupshave gone on record to resent, for ex-ample, the fact that numbers of whole-salers have set up their own servicedepartments (many, since Pearl Har-bor) to serve consumers direct. Out ofthis inroad of the wholesalers upon theprovince of radio servicemen and deal-ers comes another evil: the diversion ofradio tubes intended for allocationamong dealers, to the wholesalers' ownservicing departments. And wheretubes are made available to dealers,some wholesalers will not release themost frequently needed replacementtubes unless the dealer also agrees totake a supply of rarely needed tubes.Little wonder that many dealers com-plain they are literally being starvedout of a prime source of income-radio servicing, repair and recondition-ing. Without the right types of tubes,how much of that business can theyhandle? Less and less, as the practicecontinues.

Why not spread today-naw-someof that trade sunshine promised or putoff for "tomorrow'?

August, 1944 11

A LANDOFFICE BUSINESSby Eugene A. ConklinSIBLEY of Rochester is a departmentstore whose radio department hasseen increased record sales go to 40 percent above the pre-war level. The rec-ord department is doing a landofficebusiness and some of the promotionsused in the process are discussed below.

To begin with, the department is sub-divided, each division displaying a par-ticular type of recorded music, withlarge, easily read signs to guide cus-tomers. In addition, signs on the storewalls invite customers to use the serv-ices of the firm's "record counsellor."The counsellor has an office all her own.She is there to be asked to suggestrecords for children or for those whodesire to learn to appreciate the class-ics, and records suitable for parties,jam sessions and the like. She will al-so try to locate old tunes and trackdown novelty numbers, or any othertype and shade of platter needed forspecial occasions.

War -time Promotions

The counsellor also has lists show-ing the current record favorites of menand women on the fighting fronts. Thismakes it easy for the folks back hometo send the right music to those oftheir fighting kin who may own a port-able phonograph or have the use ofone.

THIS radio department upped record sales 40 per cent.Music appreciation courses and "clubs" increase highunit -priced "package" sales for adults and children.Self-service display feature improves record turnover.

Another promotion to fit the timestakes the shape of catering to defenseworkers with records for morale -build-ing. There's a special department forloaning recordings for dances sponsoredby defense workers, and there are alsocollections of records with music of arestful nature for those who are ex-hausted after a hard day or night shift.Every so often the store runs an ad inthe local papers to salute the men andwomen who work in defense plants, tak-ing the opportunity to remind them ofthe not generally -known fact that mu-sic will often prevent an attack of the"heeby-jeebies" and recommending cer-tain record purchases.

In addition, any fraternal organiza-tion holding a dance or social may bor-row suitable recordings from Sibleywithout charge. This has done a greatdeal to cement goodwill in the com-munity.

Standby PromotionsThere are numerous other ingredi-

ents that make this record operation

successful. For example, Sibley's holdsclasses in music appreciation. Localmusic instructors discuss the lives ofgreat classical composers, past andpresent. Recordings are played and themusic is explained by the instructor.

Twice a year the store goes in for aget -acquainted record show which isheld in the record department and lastsabout two hours. One session is heldat night and another during the day togive defense workers a chance to at-tend. Local radio stars are glad to ap-pear on these shows. A member of alocal music club or the music critic ofa newspaper discusses classical discsand the latest news about record mak-ers and productions. A local danceband maestro gives out on the latest"hot" recordings, and for good measuremotion pictures of recording celebritiesare shown. The show-of course-isfree to all comers.

Reminders are given over the radio,spots being used most effectively. Theprogram uses a time signal repeatedthree times between six and half -past


eight every morning. The signal -com-mercial consists of a suggestion thatthe worker pick up a few new recordswhen coming home from the plant atnight. The housewife also is remindedthat she might well bring home a rec-ord along with the groceries to giveher family a treat. This, according toSibley, is the kind of radio advertisingthat works best for the store in thatcommunity.

Children have their innings whenSibley holds a half-hour musical storytime every Saturday, at which time theyoungsters gather in the record de-partment to listen to folk tales whichhave been recorded and to famous mu-sical works intended for children. Thestore hires a school music instructorto act as mistress of ceremonies, ex-plaining to the youngsters the secretsof music appreciation.

The window displays come in forsome unusual treatment. The store in-vites customers to drop in and leavethe names of their favorite record art-ists. Each week . photographs and"who's who" stuff on at least three rec-ord makers are included in the window-izing. A local cartoonist's caricaturesof various record stars are also shown.All of which gives the windows "some-thing" in the way of interest every

week, encouraging more store traffic.A tie-in for the time when radios

will again be available is the bulletinboard listing the various times and theradio stations over which well knownrecord artists may be heard. The boardis changed weekly so it is up to date,and many a customer will drop in tocheck on the air schedules of a favoriteperformer.

And a tie-in with community growth-which means more new customers-is worked out on another radio programwhich introduces newcomers. House-wives, defense workers, children andothers who have not been in the cityfor more than a few weeks are intro-duced over the air. In addition to de-scribing themselves and their hobbies,they are asked for the names of theirfavorite musical artists, some of whoserecordings are played right then andthere. To give the program this "per-sonal" touch, those invited are given apreliminary interview at the store aday or so before they go on the air.

The Result is More SalesThe various promotional activities

naturally make it possible for Sibley'sto do some smart selling. The storespecializes in creating musical record"libraries"-groups of records suitable

IN RECORDS

for the varied tastes of an entire fami-ly. Such a collection might include afew marches, some classical selections,waltzes, hillbilly novelty numbers andthe popular record hits of the day.

The "libraries" are made up afterthe family members have each madetheir own list of record favorites. Thelists are then pooled together and thestore makes up the record library tofit the family's tastes.

The resulting "package" sales oftenrun from $10 to $75 per family-andthe larger libraries of records are oftenpaid out on the budget system, aboutone-half down and the balance weekly.

Those who attend the store's musicappreciation classes are constituted a"club." The members agree to buythree or six records every month, oftheir own selection or from store listsissued every two weeks. And everysix months the store declares a recorddividend, when members in "good stand-ing" receive two or four records free.

Portable phonographs beside eachgroup display rack make it easy forcustomers to serve themselves from thebins or by going through card cata-logue lists and asking for the records,which they play themselves. Goingthrough the card files, customers oftenare reminded of other records whichthey would not otherwise have boughtat the time.

This self-service-from bin selectionto self -playing the wanted records-hasworked out well for both the custom-ers and the store. Sibley's finds thatit must be real self-service and not anyhalfway formula.

The Children's Corner

August, 1944 13

MANY requests for service andadjustment data on the late

model Silvertone automatic recordchangers have been received. As thedata was not included in the latestRider Manuals, we accordingly fur-nish it.

DESCRIPTION OF CYCLE

(Record Changers Used With 100.384-1Chassis)

To start the cycle on models witha switch on the base plate or on theradio control panel, turn on theswitch and press down on the ToneArm. This depresses the REJECTBUTTON No. 18, Figure 1, on topof the rest post, which in turnthrough Trip Link (30) engages theFollower (13), starting the cycle.

When Follower (13) engages inWorm (12), Follower Arm (10) ispivoted at the pivot, lifting Crank(32) which raises Tone Arm. Crank(32) is fastened to the lift pin. Asthis rises and strikes the incline atthe angular upper end of the IndexPlate (34), it causes a rotation ofthe Crank (32) which in turn con-tacts the Crank Pin (27) fastenedto the Tone Arm shaft and swingsthe Tone Arm inward until the Crank(32) strikes Index Plate (34). Thenas the Follower (13) returns to itsstarting position, the Crank (32)drops, setting the Tone Arm on therecord.

The set down position for 10" or12" records is automatically con-trolled when the ejector is positionedso that the edge of the 10" or 12"record rest in the support bracket.The Record Ejector (24) can be setin the 10" or 12" position by merelyslightly lifting it and pulling or push-ing it in or out until the 10" or 12"numbers show at the edge of theopening in the housing.

ADJUSTMENTSAll adjustments can be made with

record changer disconnected fromthe power outlet.

TONE ARM SET -DOWN POSI-TION ADJUSTMENT:. To adjustthe set -down position of the tonearm, trip the reject button and turnthe turntable by hand clockwise untilCrank Figure 1, bottom, strikes theIndex Plate and the Tone Arm startsdownward toward the record. Loosenthe screw on #27 and, holding theCrank in contact with the lower por-tion of the Index Plate, move theTone Arm until it is directly abovea point 1/8" in from the outside of arecord of the size indicated on theEjector Slide (24). Retighten thescrew and carry the mechanismthrough the remainder of the cycle.

EJECTOR ARM SETTING (A):The adjustment of screw "A" de-termines the point in the cycle in

SERVICE AND ADJUSTMENTof automatic

RECORD CHANGERS

TURNTABLE

DRIVE PULLEY

MOTOR PULLEY

POST SCREW

SUB FRAME

ASSEMBLY

Figure 2

Figure 3

EEDRIVE DISC

ECGEAR STUD

EFGEAR PINION ASSEM

EASPRING CLIP

EBGEAR STUD

EDWASHER

EGDRIVE PIN, TURNTABLESHAFT, a FRAMEASSEM

EHGEAR STUD

EJGEAR B DRIVE PINIONASSEM

ElSECTOR B POSTASSEM

RECORDER ARMBUSHING

THRUST WASHER

I -ACUTTER STYLUSSET SCREW

FBCUTTER ARM

FCCUTTER LEADS

FDCUTTER HEAD

FECUTTER SPRING

CUTTER ADJ. SCREW

FFCUTTER ADJ. NUT

FGADJUSTING SCREW

LOCKWASHER

FHRECORDER LOCK

POST NUT

F I

RECORDER LOCK


TOP VIEW

BOTTOM VIEW

Figure 1

which the next record falls. Turningthe screw clockwise causes recordfalling to be delayed, while turningthe screw counter -clockwise causesthe records to fall earlier in thecycle. This screw should be adjust-ed using a 12 inch record in the 12inch position. Adjust the screw sothat the, record falls when the tonearm has moved to its extreme out-side position in the change cycle.Tighten the locking nut after theadjustment has been made.

TONE ARM TRIP POSITIONADJUSTMENT (B): The trip po-sition is adjusted by screw "B". Forproper operation the screw should beadjusted to trip the mechanism atthe eccentric finishing groove on a

record. This will assure satisfac-tory operation for the majority ofrecords in use. Turning the screwclockwise will cause earlier trippingof the mechanism; turning counter-clockwise will delay the tripping.Tighten the locking nut on the screwwhen the correct adjustment hasbeen obtained.

NEEDLE PRESSURE ADJUST-MENT (C): To increase the weighton the needle, should it jump groovesor slide across the grooves too easily,lift the tone arm, and relieve thespring tension by releasing the smallsprocket wheel a quarter turn at atime. On the other hand, should therecords and needle wear too fast, in-crease the spring tension with . the

sprocket to decrease the needlepressure.

TONE ARM HEIGHT ADJUST-MENT (D): The height to whichthe tone arm rises during the changecycle is governed by the adjustmentof the screw under the tone arm onthe top of the tone arm post. Turn-ing this screw clockwise will lowerthe height to which the tone armrises and vice versa. The properadjustment may be made by placing12 ten inch records on the turntableand adjusting the screw to the pointwhere the tone arm clears the toprecord during the change cycle.

EJECTOR SETTING: The smallscrew, (22) in Figure 1, makes twoadjustments: It varies the tension ofthe spring used on the Ejector mech-anism (24) ; and it also moves thestationary position of the Ejectorwith respect to the rest of the mech-anism. To lower the spring tensionon the Ejector, loosen the lock nuton the screw and turn the screwcounter -clockwise. Turning the screwcounter -clockwise also moves theEjector farther away from theSpindle. Turning the screw clock-wise increases the tension of theEjector spring and also moves theEjector closer to the Spindle.

The correct adjustment of thescrew may be obtained as follows:

Set the Ejector for 12" recordsand place ten 12" records on thespindle. Turn the turntable by handand observe record dropping. Thescrew should be adjusted so that thebottom record just falls. The screwis correctly set when almost entirelyin the "out" position. The springtension on the Ejector is then rela-tively small and stalling of the motoris less likely to occur.

NOTE : After adjusting thisscrew, check the adjustment of "A".Remember to tighten the locking nutafter adjusting a screw.

TROUBLES & REMEDIES1. NOISE WHILE CYCLING

This trouble is caused by theFOLLOWER ARM (10) being bentout of position. Straighten thearm.

2. TURNTABLE RUBSLoosen set screw on WORM (12)

with an Allen wrench and raise thespindle about 1/16".

3. DOES NOT CYCLE WITH RE-JECT BUTTON

Check to see if TRIP LINK (30)is releasing FOLLOWER (13). IfTRIP LINK releases FOLLOWERbut will not center on threads ofWORM, bend the FOLLOWERARM (10).

4. MOTOR SLOWS DOWN DURINGCYCLING

Bend paddle end of FOLLOWER. (Continued on page 34)

!August, 1944 ,15

With steady turnover of a moderate stock at small rental

radios dealers can get back many times the original cost.

Rent Radios

FORPLUS INCOME

by LEWIS C. STONEManaging Editor

AVERY practical radio serv-ice dealer told us the otherday that he has more than

doubled his set -renting businessin the past two years. And a goodthing, too. He used to get 50% ofhis business from servicing andrepairs and the balance fromsmall set sales and rentals. Whennew sets disappeared, and withlimited help tending to hold downhis capacity to handle more serv-icing jobs, this dealer went aboutassembling a stock of used radiosets which he remodelled and re-conditioned. He then aggressivelywent after more rental business.Now about 75% of his income isfrom rentals, the balance fromservicing and an occasional saleof a reconditioned or convertedradio.

In a neighborhood of largetransient and residential hotels,the owner of Acme Radio Servicefinds radio renting a full-time job.Now that he is well established, itis just a matter of keeping his"library" of sets in. circulation.

But before he got to this point,he did some intensive spade workwith the managers and even bellcaptains and bellhops of the hotelsin a range of about ten squareblocks from his shop. He hasworked up some attractive cardswhich the hotels place under theglass tops of guest -room dressersor in their elevators.

He recalls that the very first"in" to hotels came through a call

for a radio set from a guest whofound the dealer's name in theclassified phone book. He deliv-ered the set through the frontdesk, and got the bellboy to bringa signed receipt for the radio to-gether with full payment in ad-vance. It was then that he work-ed out a schedule of charges withenough spread in them to enablehim to pay a flat $1 to the hotelpersonnel every time a radiorental was turned over to him.That is, no matter how manytimes the same set may be rentedto different hotel guests, the deal-er pays the dollar each time. Thisgives him $2.50 per set clear -gross.

With the incentive of $1 pick-ings per rental, bellboys quicklyget into the habit of suggesting a

guests while taking them up totheir rooms. The dealer says thathotels usually are glad to be ableto offer their guests a rental radiobecause it adds to their capacityto give more service, which is im-portant even in these days ofovercrowded accommodations.

ACME RADIO SERVICEAVENUE, NEW YORK,

1

CO...880 THIRD N.Y.

RENTAL SET No. 130

CUSTOMER( or hotel name)

ADDRESS( or hotel roomto which sent )

INDATE

OUTDATE

AMOUNTPAID

DATE LASTSERVICED

Figure 1. One of four steps that keep the rental sets in circulation.


How It Pays

Generally speaking, the way tomake money in rentals is to getinto a position of having at leasta dozen radios for the purpose.Say you net about $6 a month(after repairs, replacements andservicing and "trade" costs) perset. That would mean around $70to $75 a month additional income.And with more sets, more income.Some dealers have as many asthirty or forty sets "working" forthem around the clock. The in-come is, of course, all gravy afterthe first two or three months, asthe turnover of rentals brings inmany times the original cost ofthe sets.

Keeping the set turnover fromturning the shop topsy-turvy ismost important. Without a sys-tematic record, the dealer willsoon lose himself in a maze ofmix-ups and complications andmay even lose some sets. Simplerecords, kept consistently byAcme Radio Service, avoid a lotof difficult situations. The formAcme uses is similar to the oneillustrated, and the system can besummed up in four steps :

Step 1: Every rental radio has aspecial dealer number af-fixed to the bottom of theset.

Step 2: This number appears onthe customer's slip (whichis the standard form,needs no special printing).The customer's name andaddress (or room num-

ber), the fee paid in ad-vance and receipted, andthe date of delivery shouldbe carefully entered.

Step 3: The information on thecustomer's slip is thenposted in an ordinaryblank book, on a pageheaded with the numberof the radio set (seefig. 1) .

Step 4: And finally, the date theset is due back is notedon a "memo" type calen-dar pad or tickler, postedthree days ahead. That is,a radio set due back onthe 10th appears on thecalendar on the 7th.

With this system the dealer cankeep his sets out on income -pro-ducing rental most of the time, ashe knows in advance just wherehe stands and can do some follow-up with other clients and pros-pects ahead of time.

Other dealers have differentschedules, depending on the kindof neighborhood. In the moder-ate -priced hotels, one dealer findsthat a graduated scale beginningwith $1 minimum (for a day orless) and going up to $3.50 aweek and $7 for a month hashelped develop a good source ofadditional income for him. Be-cause of the low rate, the same setwill be rented and re -rented bythe hotel without even being re-turned to the dealer, except forservicing. The bell hops collecttheir bit in the way of tips fromthe guests served, making it a

Active set rental busi-ness followed up ag-gressively balances thebudget for Acme RadioService. When he tele-phones to check on setswhich are due back thisdealer usually gets

more orders.

point to make a special trip to de-liver the radio and plugging it in.In return the dealer gives thehotel employees a break by fixingtheir radios and other appliancesfree of charge on occasion.

Rentals EverywhereWhile these examples were

found in New York and are there-fore more typical of large cities,small towns also offer good pos-sibilities for extra income throughrentals. With hotels full every-where, regardless of the size ofthe communities, it is very likelythat guests often sit around theone radio in the town's hotel lobbylistening unwillingly to programsthey probably don't like. A livedealer could work out a dealthrough the hotel or with theguests direct to rent them radiosfor, say, $1 a day which they canhave to themselves in their ownrooms and get the programs theyreally like. And when people areaway from home especially, sucha service helps to relieve themonotony.

It doesn't take too much arith-metic to figure out that if a set isin active rental use one out ofthree days (or 100 days in theyear) that means $100 additionalincome per -set per -year. This ismany, many times over the orig-inal cost of the average midgetor table model radio that would beused for rental. A hundred activerental days per year, means theset is turned over a hundred times-and that's where lies the profitfor the dealer-in turnover

August, 1944 17

KNOW YOUR OSCILLOGRAPH!

Prepared by the

ENGINEERING DEPT.ALLEN B. DUMONTLABORATORIES, INC.

The oscillograph is the most useful uniton the test bench. It is also the leastunderstood. This series explains it fully

PART 3.

Time -Bases or Sweep GeneratorsSince practically every pattern on

the screen of the cathode-ray tube isa plot of some variable quantity withrespect to time, the motion of theluminescent spot with respect to timeis of utmost importance. The mostcommon deflection system consists oftwo sets of parallel deflection platesarranged at right angles to eachother. By making the potential ofone set of plates in some manner pro-portional to time, and that of theother set proportional to the phe-nomenon to be studied, a plot can beobtained in the usual Cartesian co-ordinate form. The deflection of thespot by a potential proportional totime would trace out a linear time -base. Many other types of time -bases are used in which the deflect-ing potential is proportional to somefunction of time. Examples of theseare the sinusoidal and circular time -bases. Figure 17, after Puckle,shows an entire family tree of time -bases. All of the types shown willnot be discussed here, but each typehas particular advantages for somespecialized investigation.

Linear Time -BasesThe linear -time -base is adaptable

V0

T

T

Figure 18

to wide varieties of uses. A plot ofa voltage wave which would producea linear time -base is shown in Figure18. The interval from A to C consti-tutes one period. The linear portionAB is variously called the "go" timeor the "sweep" time. The intervalBC is the return or "flyback" timeduring which the fluorescent spot re-turns to its position occupied at thebeginning of the period. An ideallinear time -base would have a sweepportion perfectly linear, and a returntime of relatively very short dura-tion. Practical circuits for generat-ing linear time -base are usually theresult of compromises among the de-sirable features. Some of the factorswhich must be considered in deter-mining the most suitable design arelisted below :

1. Linearity of sweep voltage.2. Ratio of sweep to return

time.3. Frequency range.4. Ease of synchronization.5. Return trace pulse (polarity

and impedance).6. Single sweep possibilities.7. Supply voltage required.8. Output level and impedance.9. Number and type of tubes

required.10. Number of variable circuit

components necessary to giveusable results over requiredrange of frequencies.

The order of the listing does notnecessarily indicate the relativeimportance of the factor involved.The use to which the time -base isput will determine the weight eachfactor must be given.Synchronization

In order that a stationary pat-

tern will appear on the cathode-ray tube screen, the time -base musthave the same period as the variablequantity to be plotted or some sub-multiple of that period. The adjust-ment of the time -base to this condi-tion is called synchronization. Syn-chronization can be accomplished byinjecting a voltage of the proper fre-quency into the time -base generatorin such a manner that it controls thefrequency of oscillation. The amountof voltage necessary to give goodsynchronization depends upon thecircuit employed.

Return Trace BlankingThe rapid motion of the spot dur-

ing the return period will cause arelatively faint trace of its path toappear on the face of the cathode-ray tube. If the return time is anappreciable part of the linear time-base period, this trace may causeconfusion in interpreting the pat-tern. To prevent such confusion, thebeam may be extinguished during thereturn time by applying a negativevoltage to the grid of the cathode-ray tube sufficient to extinguish or"cut off" the electron beam.

A method of obtaining a suitableblanking voltage is to apply the saw-tooth voltage to a differentiating cir-cuit which will generate a pulse cor-responding to the rapid change in

SYNCH

TPUT


SINUSOIDAL

rELECTROSTATIC

DEFLECTIONL -i-t SAW7bOTH

SINUIEA°L AND II

M SSAWTOOTH 1

r- -I ,- -I- - , I1

SINGLE TWO SPIRAL RADIAL'FREQUENCY FREQUENCIES

r - -I- - n r - 1- -1 II I i

STRAIGHT CIRCULAR SPIRAL RADIALI

LINE TRACE

TIME BASES

4

SINGLEFREQUENCY

INDUCTIVE I

CAPA1CITIVE

CURRENT2REGULATINGDEVICES

RESISTANCE I PENTODESATURATED FEED -BACK

ELECTROMAGNETIC MIXED ELECTROSTATICDEFLECTION AND ELECTROMAGNETIC

DEFLECTION

TWOFREQUENCIES

TIME SURFACE, g. TELEVISION RASTER

FLYBACK DEVICES SWITCHING DEVICES

r-EXTENNALLY SEC.F

OPERATED OPERATED

r- - - - ----- - ----rVACUUM TUBE COMMUTATOR SPARK GAS GAS VACUUM TUBE

OR SWITCH GAP DIODE TRIODE TRIGGERCIRCUITS

PULSE -OPERATED FEED BACK AMPLIFIERSSWITCHING TUBES HAVING AT LEAST ONE

STABLE CONDITION

SINGLE SWEEP SINGLE SWEEPTIME BASES TIME BASES

Figure 17

voltage and current during the re-turn time. This pulse of voltage isoften present in some part of thegenerator circuit during the returntime, and it is only necessary to ad-just its amplitude and polarity andapply it to the cathode-ray tube gridto get satisfactory return traceblanking.

Single SweepWhen transient phenomena are to

be observed, it is desirable to haveoccur only a single linear sweepwhich lasts for the duration of thetransient, and which is initiated bythe beginning of the transient orsome related disturbance occurringjust before the start of the transient.If it is wished to observe the verybeginning of the transient, the lattermethod is recommended since a finitetime is required to start the sweepafter the initiating pulse occurs.

The description of a method of ob-taining single sweeps from gas -tri-ode linear time -base generators ap-pears below under the section on gas -triode generators.

Gas TriodesThe most common method of ob-

taining a saw -tooth wave is to allowa capacitance to charge from a highvoltage source through a resistance.Only a relatively small portion of thecharging curve of the R -C networkis used.

With the capacitance connectedfrom plate to cathode of a gas diodeor triode, that capacitance is allowedto charge only to a relatively low po-tential determined by the breakdown

potential of the discharge tube. Fig-ure 19 shows the basic circuit of theoscillator just described. The dis-charge tube could be a gas diode, butthe advantages of the three -elementtube lie in the ease with which thetriode oscillator may be synchronizedto a signal applied to the grid.

Figure 20 gives a picture of theoscillation and the action of a syn-chronizing voltage applied to thegrid. If no synchronizing voltage isapplied, the discharge tube will startto conduct when its plate voltagereaches the value Ef. The conduc-tion of the tube will quickly lowerthe plate voltage by discharging thecapacitance. When the plate voltagefalls to the extinction potential Ex,conduction ceases and cycle startsagain. The rapidity with which theplate voltage will rise is, of course,dependent on the charging constantsR and C, and the supply voltage Eb.The exact relation is:

(f

re

where E is the capacitance voltage atany time t and e is the base of natu-

SYNCH.

Figure 21

UTPUT

ral logarithms. The frequency ofoscillation will be approximately:

1f = Eb/RC

Ef - E.If a synchronizing voltage is ap-

plied to the grid, the firing potentialwill vary in accordance with it in themanner shown. When the firing po-tential is reduced by the synchroniz-ing signal, the tube will conduct be-fore it ordinarily would under no sig-nal conditions. Thus, if the "freerunning" or synchronized period ofthe oscillator is slightly greater thanthe period of the synchronizing sig-nal, the discharge through the tubewill occur sooner when the synchro-nizing voltage is applied than under"free running" conditions. Thus, theoscillator will be synchronized to thegrid signal.

In practice, it is usual to make Rcontinuously variable over a range ofsix or eight to one, and C variable insteps of about five to one by switch-ing capacitors. This scheme assuresboth coarse and fine adjustment ofthe sweep frequency and provides forthe overlapping of the adjacentranges.

The source of the signal to whichthe linear time -base is to be synchro-nized may usually be selected by asynchronizing selector switch. Eitheran external, power line frequency, orY-axis signal is usually used.

The Y-axis signal used for syn-chronizing should be picked off atsome point in the Y -amplifier sys-tem where it will be of sufficient am-plitude to provide good synchroniz-ing. A continuous variable controlfor the adjustment of the amount ofsynchronizing voltage which reachesthe gas -triode grid is desirable. Onlythe minimum amount of synchroniz-ing voltage necessary to give goodsynchronization should ever be used,since excess synchronizing voltage atthe gas -triode grid will introducenon -linearity.

The charging curve of the ca-pacitance is, of course, exponential innature, but by using only a smallportion of the complete cycle the de-parture from linearity can be madesmall. Good design of the oscillatorcircuit calls for not more than 10%or 15% of the supply voltage appear-ing in the region between the firingand extinction potentials.

The oscillator just described hasa useful range of from two to fiftythousand cycles per second. At thehigher frequencies, the time requiredto discharge the capacitance becomesan appreciable part of the total cyclebecause of the de -ionization time ofthe gas triode. This de -ionizationtime is the limiting factor in highfrequency operation.

At low frequencies, the leakage ofthe charging capacitance will becomea factor in determining the linearityof the time -base. The effect of leak -

August, 1944 -19

EpPi.EgSTATIC CONTROL

CHARACTERISTIC

D.C.GRIDBIAS t

-Eg

SYNC -.-SIGNAL

APPLIED TO GRID

ED+

z//r*/

4*- - PATH SYNC SIGNAL FIRING POTENTIAL(DC BIAS)

FREE RUNNINGPERIOD

Figure 20age will be to prevent the voltagefrom rising as rapidly as it should,and the time -base will slow downduring the last portion of the sweepperiod.

The gas -triode time -base lends it-self to single sweep application with-out radical circuit revisions. Figure21 shows a time -base circuit to whichhas been added a diode with its plateconnected to a gas -triode plate, andits cathode to a source of variable po-tential. If the cathode of the diodeis set to a voltage below that atwhich the gas triode will fire, con-duction through the diode will takeplace when the plate voltage tends torise above this value of cathode po-tential. Thus, the "clipping" actionof the diode will allow the plate volt-age of the gas triode to be adjustedto a value just below that at whichthe tube fires. If a positive signalis then introduced on the grid of thegas triode, the firing potential maybe lowered below that value set bythe diode, and the tube will conduct.When the extinction potential isreached, the tube ceases conductingand the capacitance starts to chargeagain through the series resistanceIf the signal has been removed fromthe grid during this next charginginterval, the voltage to which the ca-pacitance will charge is again limitedby the diode, and the tube will notfire a second time.

A complete single cycle has thusoccurred, consisting of a return traceand then a single linear sweep. Byinitiating the sweep with a signaloccurring just before the beginningof the transient to be studied and ad-justing the value of the charging ca-pacitance and resistance, the singlesweep period may be made to occurduring the same interval as the

TIME

SYNCHRONIZEDPERIOD

-.-EXTINCTIONPOTENTIAL

transient. In order to have the en-tire single sweep on the screen, thespot should be positioned to the edgeof the screen while in the rest posi-tion. The return trace will thenrapidly displace the spot across thescreen, and the linear trace will oc-cur as the spot returns to its restposition during the charging of thecapacitance.

For fullest utilization of the singlesweep, a photographic recording ofthe trace should be made. To pre-vent fogging of the camera film bythe luminescent spot before and afterthe transient, a shutter can be usedwhich opens only during the sweepperiod. This method is not practicalfor fast sweep rates. By positioningthe spot just off the screen for itsrest position, the fogging may be re-duced. The most effective method isto have the beam in the "on" condi-tion only during the sweep time, andoff at all other times. By providinga positive pulse at the grid of thecathode-ray tube during the sweepperiod, this switching arrangementmay be accomplished. Methods of ob-taining such a pulse will not be dis-cussed, as they would depend uponthe particular application of thesingle sweep.

High Vacuum Sweep CircuitsThe limitations of the gas -triode

linear -time -base generator are notencountered with circuits usingvacuum tubes. Several types of cir-cuits have been developed whichutilize the "trigger" characteristicsof triodes or pentodes. This "trig-gering action" is a result of a suddenchange in plate or screen currentcaused by only a slight change insome other circuit constant. Thesudden change in current or voltage

is used to charge or discharge a ca-pacitance. The subsequent charge ordischarge takes place through a re-sistance and the sweep voltage ap-pears across the capacitance.

Circuits of this type will givelinear time -bases as high as 1,000,-000 cycles per second, (1 Megacycle)and as low as 2 cycles per second.These high vacuum sweep types havedisadvantages in what they are gen-erally more complex and requiremore tubes and more power thangas -triode types.Other Time -Bases

While the linear type is the mostuseful of all time -bases, special ap-plications often call for other typesof time -bases. A linear time -basegenerator of some type is generallyan integral part of a general purposecathode-ray oscillograph. However,provision should be made for the useof externally generated time -bases.Connections should be availableeither directly or through the ampli-fiers to deflection plates.Sinusoidal

By applying a sinusoidal voltageto the timing axis, deflection propor-tional to the sine function of an an-gular variable may be obtained. Nearthe center of the trace, i.e., when thevoltage wave is near zero, thevelocity of the spot is nearly linear.By making the total deflection large,this center portion may be used as alinear time -base. If the phase of thesinusoidal voltage is shifted through180°, a phenomenon occurring dur-ing any part of the wave period maybe centered on the screen for obser-vation.

Another time -base involving sinu-soidal waves is produced by applyingone of two sinusoidal potentialswhich are 90° out of phase to eachset of deflection plates. If the ampli.tudes are equal and no harmonics arepresent, a circular trace will result.The quantity under investigationmay then be applied either to the de-flection plates to produce rectilineardeflection, or to the accelerating elec-trode to produce radial deflection, orto the modulating electrode to pro-duce blanking.Spiral and Radial

Combinations of linear and sinu-soidal voltages may be used to gener-ate spiral or radial time -bases by ap-plying a circular time -base to the de-flection plates and a linear voltage tothe second anode.

An advantage of the circular andspiral time -base is that for a givensize tube, the length and duration ofthe time -base of the graph plotted isgreatly increased over that obtain-able with the more generally usedlinear time -base. The circular time-base is also suited for applicationsinvolving a phenomenon which is afunction of an angular quantity suchas in rotary motion studies.


Registered U. S.Patent Office

Philco May Unveil Plans Soon

Meantime, Philco Distributors, Inc.,are contacting the trade direct withelaborate folio presentations in whichthey highlight merchandising funda-mentals long held basic. Some funda-mentals that have helped dealers con-duct profitable operations:

That with radio set sales came radioaccessories-tubes, parts, batteries,portable amplifiers, Philcophones, phon-ograph accessories-items which weresold by dealers to the tune of $7,000,-000 in 1940. These items were offeredto create traffic and render service tocustomers. With just intelligent mer-chandising and no unusual promotion,the radio accessories created enoughvolume and profit to pay a good partof the 'overhead of many a (Philco)dealer. And (at the time) for thethousands of members of Radio Manu-facturers Service, the nationwide or-ganization of servicemen created andtrained by Philco, they became a valu-able source of income.

For post-war, the policy of keepingdealers in a position to earn all theyear around, at all seasons, will besustained with lines of radio, televisionand auto sets, portable air conditioners,refrigerators with dry, moist and freezecompartments and other appliances.

No hard and fast rules have beenlaid down as to dealer franchises. Thesmall-town service dealer may be thekey man in his community, and the bigdepartment store may garner the full -line franchise in a nearby community.

Point is, there's no quick, easy wayto consumer acceptance. It can't bebought overnight. It has to be builtup over the years, by sales and satisfied

customers. Established dealers-bigand small-will be surveyed first forthe allocation of franchises.

Postwar Television Receivers(From a talk by A. A. Brandt

of General Electric Co.)

In the final analysis, public acceptanceof television will be the result of owningsatisfactory television receivers sold atprices they are willing to pay. Therefore,I'll undertake to outline to you as brieflyand as definitely as possible our thinkingon the subject of television receiverspostwar.

First of all, we fully realize the neces-sity of providing the public with highquality television receivers at popularprices. And, when we say "popular prices,"we do not mean four-five-or six hundreddollar merchandise. From present indica-tions, it appears possible to produce tele-vision receivers postwar with excellentperformance at prices around the $200.00bracket, based on pre-war levels. Priceincreases postwar, as talked about currentlyin many newspapers, range from 25% to40%.

Recent surveys, however, indicate anaverage price rise of 18% to 20% for thefirst several years and a drop to 15% orslightly less for the long pull. This is ahealthy indication that the industry willtry to keep price levels at a minimum,although labor and material costs haverisen more than that percentage since 1941. . . and there are no indications that theseincreases will drop off abruptly after thewar.

Furthermore, we believe much can beachieved costwise by new methods, sim-plified designs and efficient distribution.

Improved picture con-trast and definition indirect view and projec-tion models will helpdealers cash in on hugetelevision receiver mar-ket. This is an artist'sconception of a post-war home projection re-ceiver. (Illustrationcourtesy of GeneralElectric Company):

The lowest priced television receiverswill undoubtedly incorporate fewer serv-ices. The higher priced models will in-corporate such additional services as thestandard and FM broadcast bands, Inter-national short wave, and the phonographwith automatic record changer.

Our television receiver line will consistof both direct view models and projectionmodels. The direct view models employ-ing, for example, a 12 -inch tube, will bein the relatively inexpensive price range.We anticipate such a design because ex-perience indicates it will insure the viewerexcellent picture contrast and definition.If a larger picture were provided in thelower priced merchandise, we would haveto sacrifice picture quality to some extentover that obtainable with a direct viewtube.

The higher priced television sets for thehome will undoubtedly be designed with aprojection tube that will provide an excel-lent picture up to 18 by 24 inches. Satis-factory projection type television sets areinherently more expensive to produce.

We plan to make new type televisionreceivers available to the markets, wheretelevision broadcast services now exist, assoon as government authorization allowsus to do so. This is a large market andwill provide an adequate "jumping-off"point for a good start in the full and or-derly development of the industry.

As you have just seen, there are 9 sta-tions operating today in 5 cities. In theareas they cover there are roughly 27.-000,000 people in about 7,000,000 wiredhomes. This represents a little more thana quarter of the buying potential.

In three to five years after the warthere will be many additional televisionstations in operation throughout the coun-try . . . and this means a television re-ceiver market of huge proportions.

Savings Clubs For AppliancesDealers can bank on tremendous sales

of appliances of all kinds after thewar-the money is waiting-say bank-ers who have made surveys amongdepositors in their special savingsclubs, according to Radio Corporationof America.

Latest findings, announced by A. T.Roth, executive vice president ofFranklin Square National Bank in LongIsland (said to be a typical hometown), show that 22% are earmarkingtheir savings for radio and televisionhome receivers, priced by the bank at$400; 12% are saving for home laun-dry equipment and another 12% forrefrigerators. Appliances top the listof planned consumer purchases, andare well ahead of automobiles, with13% of deposits earmarked for them.

August, 1944 21

Czisgion.Records & Record 'fakers,by L.C.S.

Duke's duke was doctored . . . so hecould go on pianochoring with his bandat Roxy's (N. Y.) . . . Ellington suf-fered a slight injury while riding in anelevator which slid out of control fora few feet. These are hectic days forPerry Como . . . bobby -sock swoonersgot romantic heaves over his softingon the mike at the Paramount . .and heaved out loud . . . so Perry said,looking at a young thing above hersocks level: "Quiet, mother. Try to re-strain yourself." To Blue's mostlyclassical "Music America Loves Best"air spot . . . Adele Girard, the swing -time harpist . . . and Mel Henke, Chi-cago's whirlwindy piano jazzola . . . togive swing its innings on the program.Shep Fields winds up at Copacabanato play theatre and ballroom spots . . .until he resumes at the New Yorknightery next March. Sammy Kaye. . . buttons up with his batons . . . bidsat war bond rallies ran as high as $5,-000 for single sticks . . . Sam and hisband are New Yorking it this summer. . . at the Astor in August.

Spike Jones is being "busted" . . .by sculptor Lanyi who also did GreerGarson and Kate Hepburn . . . thereare "busts" and busts, eh Spike? Tiestie-in with bonds . . . Perry Como gavehis personal campaign a shot in thearm . . . "How much am I. offered formy tie ?" . . . and it was promptly bidin. "How much for my shirt ?" . . .and that went on its patriotic way . . .

Don't look now, but here are LionelHampton, Duke Ellington and LouisArmstrong-somewhere in "Tunesia."

but he just wouldn't sell his pants toanother eager bidder. FBI employeesgot some choice programmatics recent-ly . . . Vaughn Monroe . . . sh-sh-sh. . . gave out for them on a "SpotlightBands" spot. Hal McIntyre travelslight . . . had all his musical arrange-ments microfilmed . . . a -la "V" -mail. . . now entire band's music fits hispocket . . . but can be readied in a fewhours by any handy photo studio . . .good for the paper shortage, too, Hal.

Dinah Shore is voicing up for WaltDisney's cartuneful "Swing Street"....leading jazzuits are recording also forthis popular music follow-up of "Fan-tasia's" classics. Spike Jones "Com-mand Performs" overseas service re-quest numbers . . . show, abetted byCity Slickers, is sent to the boys viacanned music . . . sessions of "Canned

"Crosbyana"-the Legendary

Corn?" Sammy Kaye bought a farmnear Cleveland . . . but his regular"swing" program called for more "yo-hoing" than hoeing-simply didn't stayaround long enough to farm and there'sno help . . . so Sammy sold his 100 acrefoodery-foddery to a resident family. . . the farm will go into productionsoon and so Sammy helped the foodprogram by getting out of farming.Lena Home will command -sing her"Good For Nothin' Joe" in a radio -rodeo for boys overseas. Shep Fieldsis first name band to spot in Copaca-bana, New York night highplace . . .

... and Hildegarde

Alec Templeton is summer -concert-ing on the West Coast . . . lucky, lucky,West. . .. It's pf-fff-t for real this timefor Dick Powell and La Blondell. . . .Deanna Durbin will go on a good -neighboring tour in S. America soon.. . . Di Vorce is also visiting with RudyVallee and his protem Bettejane. . . .A full Washington day for Eddie Cantor. . . entertaining wounded vets atWalter Reed hospital . . . then nightinga war bond rally on Monument lane.. . . Al Tolson pitches on a war bond-ing tour . . . two-houring in Atlanta toget solid coin from Georgia audiences.. . . Andre Kostelanets-Lily Pons areDXing from Teheran, in the PersianGulf Command area . . . Songs by theLily and a 47-Glpiece outfit led by theMaestro . . . the seventh week, and go-ing strong. And Kate Smith trip -ham-mers her bond -selling airwave with ..."Once you know the nature of theenemy you will hate and hate enoughto exterminate" . . . Kate's pitch onDemocracy hangs a Purple Heart onradio as a vital win -the -war force. . . .

Records to SellDecca:

Among some interesting August re-leases we find Hildegarde (23348) of-fering "Lili Marlene" which the sultry -voiced Garbo of song endows with all

(Continued on page 26)


History of Communications Number Six of a Series

COMMUNICATION BY SEMAPHORE

The Semaphore, as a means of communication, met first commercialacceptance in France under the authority of Napoleon in 1792.Restricted by "line of sight" and low power eye pieces, excessivenumbers of relay stations, as pictured above, were required for "direc-tional broadcasting" over rough terrain. Weather conditions, too, werea handicap. Because of the code used and its necessary translation,delays and errors were continually encountered.

Today, in the era of applied electronics, Universal microphones arebeing used to expedite messages on every battle front in the service ofthe Allies. Universal is proud of its contribution in the electronic voicecommunications and its every effort to our ultimate Victory.

Model T-45, illustrated at left, is the new Lip Micro-phone being manufactured by Universal for the U. S.Army Signal Corps. Shortly, these microphones will beavailable to priority users through local Radio Jobbers.

UNIVERSAL MICROPHONE COMPANY(INGLEWOOD, CALIFORNIA

FOREIGN DIVISION: 301 CLAY STREET, SAN FRANCISCO 11, CALIFORNIA CANADIAN DIVISION: 560 KING STREET WEST, TORONTO 1, ONTARIO, CANADA

August, 1944

ACUSTOM

DIVISION

FOR

SPECIAL

"SOUND"JOBS

The Custom Division of the David Bogen Company is de-voted exclusively to the design and manufacture of specialsound systems. Whatever the assignment - an industrialplant, air field, hospital or shipyard - each differs in con-ditions of noise level, areas to be covered, functions andfeatures required. The Bogen custom sound system is indi-vidually designed and built to fulfill the requirements ofthe individual job.

To do the job in the right way, the David Bogen Companymaintains an engineering staff and separate constructionDepartment. The services of a field engineer are availableto Bogen distributors for making the sound survey and"laying out" the system.

The War Production Board has relaxed the restrictions ongranting priorities for industrial sound systems. The DavidBogen Company is one of the limited number of manufacturerspermitted to expand the production of this vital equipment.

Help Crack the Axis More Quickly ... Rag More War Bones

David Bogen CO All1Cf t STIALIARD Of VLtF OR ftCt

663 BROADWAY NEW YORK 12, N

ogen Sound Systems Communo-Phones Amplifiers Electronic Equipm

Sik,oEdikt

MORE "RUN-AROUND", MOREEARNINGS

Editor :With this letter I am enclosing a

"little thought" that you might pass onto boys in RSD, as I believe a lot ofthem can be helped by my suggestion.At least you might try it and see whathappens. The truth is that there area lot of radio servicemen that won'twork on intercoms. and amplifiers, andmuch prefer to lie on their backs insomebody's automobile working on somecar set than go out of their shop andget some of this work.

The WPB does not believe in givinglarger gas quotas to the civilian radioservice shop, figuring that most cus-tomers will bring their sets in and willcall for them. No thought is given tothe people who have big sets and noautomobile, and no thought is given thedealer in regard to running around try-ing to get parts, etc.

The boys might get something worth-while out of the following suggestions:

Here's a thought that may help youfellows who have trouble in gettingenough gas to make your calls and de-liveries. You, who don't like industrialintercoms or paging jobs, get this: youcan easily rate "C" cards if you willtake on some of this work. And whilethere is little new stuff to sell the plantseven though they are engaged in warwork, you can revamp their old equip-ment. By getting a few jobs and let-ters from these people you can go toyour ration board and with these let-ters showing what you are doing, youcan get the necessary gas ration.

The writer has over a period of yearssold intercoms and paging systems inindustrial plants and now these sameplants are for the most part engaged90% in war work. Of course theyneed these systems serviced right along,and while you are not allowed to makeextensions and additions, without WPBapproval you can get all the materialand equipment to revamp these outfitsand bring them up-to-date, on AA1 orAA2 MRO. All that is necessary is toget a purchase order for your customerwith the necessary preference ratingand extend this to your jobber.

In this way you are not only helpingwin the war but at the same time aregetting enough gas to take care of yourregular radio service business. Thenthere is another bright spot in the pic-ture. These plants are all makingmoney and do not haggle over yourbill. Some of the tubes that you willneed from time to time are hard to get,but with a priority rating you can haveyour jobber order them and most ofthem will come through in a month orso. In the meantime it is always pos-sible to substitute some other apparatusor tubes to keep the outfits operating.Even if it is necessary to purchasetubes at retail prices from some other

(Continued on page 28)


At ESTON RELAY SENSITIVITY hasbeen advancing with

seven -league boots!

1935 ... Sensitivity 1milliampere

.. Sensitivity10 microamperes

1938 .

1940 . . Sensitivity5 microamperes

. . *

Sensitivity1944.

With today's emphasis on electronics, WESTON developments in the fieldof Sensitive Relays assume utmost interest to design engineers. Evenprior to the war, these relays provided positive control at input values lowas 2 microamperes or 1 millivolt. Employing WESTONS exclusive magneticcontact principle, they handled 5 watts at 110 volts, with complete freedomfrom contact troubles.

But relay development at WESTON has kept pace with the more exactingcontrol needs of this war. Relays with sensitivity for exceeding that ofpre-war days already have proved their reliability on critical equipinent,an

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