That looks more like an adjustable distortion circuit, I never saw a lowpass like that before. Perhaps if you used an inductor in place of the .068 cap between the emitters, it would be more high frequency. I think you would need a DC blocking cap in series.
That looks more like an adjustable distortion circuit, I never saw a lowpass like that before. Perhaps if you used an inductor in place of the .068 cap between the emitters, it would be more high frequency. I think you would need a DC blocking cap in series.
It looks strange because it's voltage controlled, and gives a log response, hence the strange connection of a number of transistor pairs. Don't forget, this was pre-opamp (at least IC ones!).
Hmm, inductors. They'd have to be pretty big for audio frequency use, right? You think it may not be possible at all, with that design, and to get the same sort of response?
Another question on it, if I removed say 2 of those capacitors and transistor pairs, would that make it a 12db instead (very uneducated guess, sry)
When I next email him, I'll ask the guy who had the original idea for the MiniMoog about it? (he was also a major designer on the original Moog as well).