[sdiy] 1-pole LPF using a differential integrator?

[Aaron Lanterman]

On Apr 30, 2008, at 4:00 PM, rdrake wrote:

> how about that center-tapped pot on the output?  would love to see  
> an alternative way of implementing that...

What did you have in mind?

Indeed that is an interesting feature - I don't think I've seen  
another synth with something like that.

I recall the Buchla 258 - I think - has some FET based circuitry that  
lets you crossfade between a sine and a whatever-other-waveform -  
maybe something like that could be used here to make it voltage  
controllable.

- Aaron