AKAI GX-1900D

Cassette part

Cassette compartment

GE ö open

... Traces: District track device Volume speed: 9.5 and 19 cm / sec Tape 4.75 cm / sec Tape (2x): 3 Stellig .. Built in:   1972 Price: 1798, - DM

Coil diameter: Max. 18 cm

Propulsion: 1-Hysteresis Synchronous motor for band and Cassettes operation

Feature: 8-track Cassette part

Assembling head; 1 x recording / Play, 1 x CLEAR-head Assembling head - Cassette: 1 GX-recording / Wiergabe head 1 L ö schkopf

... Inputs: microphone: 0.5 mV (5 K-ohms) - Line: 50 mV (200 K-ohms) Outputs: DIN: - Line: - Headphones: Extremely: 2 VU meters Overall frequency response with normal volume: at 9.5 cm / sec: 30 - 15 000 Hz (+ / - 3 dB) at 19 cm / sec: 30 - 22 000 Hz (+ / - 3 dB) Tape: 40 - 15 000 Hz (+ / - 3 dB) Distortion: <2% (1 KHz and "0" dB) Weekly noise ratio:> 50 dB Tonhöhenchwankungen: at 9.5 cm / sec: <0.15% RMS at 19 cm / sec: <0.12% RMS Tape: <0.2% RMS Vormagnetisierung and Löschfrequenz: 100 KHz Dimensions (WxHxD mm): 375x435x250 mm Weight: approx 18.4 kg Retail price: about 1798, - DM Special features: With cassette player. About playing on cassette tape or tape

on tape. recording / playback to / from tape, as well as recording / playback / from Cassette. Common VU meters, regulators in recording and playback effect. Capstan adapter and roller with a smaller diameter for dubbing from Tapes! 9 cm / sec on tape. It can also play recordings or with speed 38 cm / sec be realized. (but what) Volume GX device has no heads, only part of the cassette.

Here is one of the most popular decks that I like from Akai's models.

Have restored many GX-4000 D and people has been very satisfied what this deck can do.

There was also another model available with Dolby GX-4000 DB.

Monitor Switch: Tape/Source.

Sound on Sound.

Equalizer Switch between 3-3/4 and 7-1/2 speed.

Tape selector switch: Set to Wide range or Low Noise position according what tape is being used.

4-track, 2 channel stereo/mono system.

(3) Heads

Reel capacity: Up to 7 inch reelsize.

Tape Speed: 3-3/4 and 7-1/2.

Note: This model has a speed sleeve for use, when 7-1/2 speed is wanted. There is a storage post behind the headcover located to the left side.

Wow and Flutter: Less than 0,08% WRMS.

Frequency Response: 30Hz to 24,000 Hz (+-3dB at 7-1/2.

30Hz to 16,000Hz(+-3dB at 3-3/4.

Distortion: Less than 1% (1,000 Hz "0" VU.

Signal-to-Noise-Ratio: Better than 60 dB.

Erase Ratio: Better than 70 dB.

Bias frequency: 100 kHz.

Motor: (1) 4-pole induction motor.

Fast Forward and Rewind time: 200 seconds using 1200 feet tape.

Input jacks: (2) Microphone: 0,25 mV. Required microphone impedance: 600 ohms.

Headphone jack facepanel.

RCA jacks for Output and Input.

DIN connection.

Semi Conductors: 24 transistors, 13 Diodes, 2 FET's, 1 IC.

Power requierements: 120 V, 60 Hz for Canada and US. 220/240 V, 50 hz for European countries & Australia.

Voltage Switchable: 110/120/220/240.

Dimensions: 17,3 Wide, 12,4 Tall, 9,1 Deep. Weight: 29,1 lbs. (13,2 kg)

One single motor and beltdriven capstan using a flat belt.

Counter is also beltdriven and located on the right

Also have a automatic shutoff sytem when the tape is ending the capstan motor shuts off with a micro switch located behind the faceplate.

With the faceplate removed you can see the Idler-wheels that engage to the capstan pulley depending if the lever is in Play or the other Fforward/Rewind is used.

The black Idler-wheel to the left of the capstanpulley when Rewind is set by the lever, the black Idlerwheel goes against the capstan pulley + white plastic wheel to next step engage the

Left reeltable for Rewinding the tape.

On Fforward the small upper black Idler-wheel goes against the Right Reeltable + capstan pulley to engage.

Also on Playmode the upper black Idler helps the tape to wind up on the the R-reeltable but on the lower point of the reeltable.

At the same time the pinchroller engage to the capstan axel to feed the tape at exact speed over the head-assembly.

The capstan axel is controlled by the capstanmotor and beltdriven belt around the fly-wheel.

When speed sleeve is mounted it makes the speed raise up to 7-1/2 instead for 3-3/4.

Akai Metal-reel R7-M was a extra option.