The Hammond Organ

Service Manual(1936-1944)

Includes Models:A / B(BC) / C / D / E / G

with an Appendix of diagrams from later year manuals

covering the included models

Prepared by Joe Luca

TABLE OF CONTENTS:

Part 1: Operating & Instruction Details (General Description) A) The Amplification System

B) The Model B Organ C) The Model E Organ

Part 2: Acoustics - The Part They Play in Hammond Organ Installations

Part 3: Cable & Plug Specifications A) Permanent Installations

Part 4: Analysis of Troubles A) Key Contact Shifters B) Dismantling Instructions

Part 5: Special Equipment for the Hammond Organ A) The Tuning Fork Regulator B) Echo Switch Installations in the Model B Console C) Echo Switch Installations in the Model E Console D) Connections for Using Earphones with the Organ E) Installation Instructions for Foot Switch. CX20, DX20 & DXR20 F) Echo Switch Installations in Models C & D Consoles G) Installation Instructions for the Reverberation Unit Kit H) Installation Instructions for the Reverberation Attachment Kit I) Installation of the Console Heater

Part 6: Changes - Revision to Improve Pedal Tone

Appendix of later Manual Diagrams

Appendix:A collection of later manual

diagrams and schematicsfor the 1 Generation ofst

Hammond Organs

These diagrams are included here to assist the technician byproviding a better quality source than the commonly poor scans

found on the Internet as of this writing.

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