Minimoog VCO

[terry michaels]

Greetings

I'm sure most of you know that Minimoogs with serial numbers below 10175
contained a VCO board  that used a CA3046 and 741 op-amps, and Moog used a
different VCO board for units above s/n 10175 that utilized the UA726. 
What you might not know is the earliest production Minimoogs used an
earlier VCO board which used only discrete transistors, no IC's.  I have
not seen the schematic for this circuit on the web, and so I assume it has
not been posted.

I have a poor quality photocopy of this circuit, which I scanned at 600
dpi, and spent considerable time cleaning up the resulting file.  Although
the design doesn't present any new ideas, I believe it may have historical
inportance.

I would like to present this circuit to the list, but since I do not have a
web site at this time, what I will do is send it attached to a return
email, if you send me a request for it.  BTW, the file is large (815 kb,
GIF).

Terry Michaels