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previous: R.G. Another opamp is the simplest way. ... -- 8/3/1999 3:47 AM View Thread

Re: Anderton's envelope follower questions...

8/4/1999 1:09 PM
anonymousRe: Anderton's envelope follower questions...
Another aproach that's sometimes used is to include a control voltage mixer stage that allows one to pan between inverted and non-inverted control voltages, with the centre position resulting in a cancellation (i.e., no CV out). The EH-Y-Triggered Filter uses this approach. I've seen schematics of theYTF posted, but the schematic was not condusive to reverse engineering. I have a schematic for such a CV "pan" circuit in a back issue of Electronics Today. I'll see if I can scan it when I get back from holidays.  
Incidentally, this approach allows the CV pan/balance control to double as an "intensity" control. Now that I think of it, parallels to the Big Muff Pi tone control are appropos:the amount of each type of output depends on how far clockwise or counter-clockwise the control is turned.

Mark Hammer Uh, that was me, using my brother-i... -- 8/4/1999 1:11 PM