HAMMOND
Demonstration "Organ"
The Hammond Organ Company made these small cut-away "organs" to demonstrate how the Hammond Organ produced the tones. Only the right most key functions but both drawbars do work. The unit is powered by two "D" cell batteries operated through a momentary switch. The output of the demo unit can be put through a small amplifier so that the tones may be heard.
FRONT VIEW
Note "Hammond" name on front edge
Left Side view
Tone wheels under and to left of keys
Tone Wheel Close-up
The tone wheels produce tones 3 octaves apart
Tone wheels from top
Note the pick-up coils
Right side view
Key contacts visible on right side
Key contacts
Only two contacts are connected in this demonstration model
Top View showing Drawbars
Intensity resistors for drawbars on left