[sdiy] MOTM300 is an interesting design

[Oren Leavitt]

Sounds similar to the Moog 921 VCO core which implemented a 
high-impedence/high-speed buffer using a dual JFET coupled to a CA3080.

- Oren

Aaron Lanterman wrote:
> 
> As a side note - Paul's VCO is a sawtooth core, but the integrator isn't 
> quite like anything I've seen. There is no integrating op amp. The cap 
> just sort of hangs out, and is buffered by this dual-FET uberbuffer 
> between it and the relatively low-impedance input LM319 (it reminds me 
> of some early Buchla stuff where he puts FETs before BJT op amps).
> 
> And the intergrating cap it discharged with... a 2N4402 BJT???? Not a 
> FET or MOSFET? Strange and interesting...
> 
> The summer stage looks top notch... all OP275s and such...
> 
> - Aaron
> 
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