[sdiy] Anyone have schematics for a Kimball Organ rhythm machine?

[aankrom]

The use of Japanese Ge transistors and a different "look" of the design 
compared to the rest of the Organ leads me to believe that Kimball did 
not design or manufacture this part of the organ, but I could be 
wrong...

On Wed, 25 Apr 2012 18:46:28 -0400, aankrom wrote:
> I have a  Kimball Organ rhythm unit from a 600/700 series (late 60's
> early 70's vintage). The organ it came from had a service manual for
> all circuits, but the rhythm machine. The organ used weird, unmarked
> Ge transistors mixed in with some Si units. The rhythm generator is
> mostly 2SB175's. Lots of bobbin inductors. I like the unit as-is, but
> I'd like to know what's what. I'm curious about the circuits making
> the percussion sounds. I'd also like to be able to trigger each sound
> externally and perhaps modify the preset rhythms (the ones I don't
> like. I'm making a box to hold the power supply, Ge power amp and
> reverb unit and the rhythm unit all in one box. The organ speaker is
> going into a large speaker box from an old RCA console stereo.
>
> AA
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