CA3046 exponential converter

[<<marjan>>]

Michael B. Irwin wrote:
> 
> The Moog Prodigy, Multimoog and Micromoog all use the "CA3046
> Thermostat" circuit with no temperature compensating resistor (similar
> to the AN-299 VCO). The rest of the VCO uses inexpensive dual BIFET op
> amps (TL072 or LF353) with an LM393 dual comparator and a JFET for
> capacitor reset.

There's also Moog Rogue,but it uses just one transistor from the array
(like diode ?) and directly affects emitter current of expo pair
(someone can explain it better than me) and uses a PNP for cap reset.



marjan