Fwd: Feedback pot between input & output of circuit

[Synthmanic at aol.com]

The following is a post from the Analog Heaven List. The poster is Bill 
Hanson, I've tried to get him to join this list, as he is knowledgeable and 
interested in synths and sound mangling, but he has not had success 
subscribing. Anyway, if anybody here has an answer to his questions you can 
e-mail him directly:                                                          
                                williambhan at yahoo.com     
Dave
In a message dated 11/30/00 4:10:10 PM Central Standard Time, 
williambhan at yahoo.com writes:

> > Hey ,
>  >  I know this guy in St.Louis who makes effect
>  >  boxes, He has one with a TL062 , it's a 
>  >  distortion box - anyway.... All he did to 
>  >  get some great noise was to put a 1 Meg 
>  >  pot between the hot side of the input and 
>  >  output , center tap is hanging I think in
>  >  the schemo - I thought You always needed
>  >  an extra node with an op-amp in the loop - 
>  >  This guy just did it with a pot. So my
>  >  question is.. I have a bandpass node out 
>  >  of 4 possible in a Buchla schemo that is 
>  >  ready to be tested with a pot or two in
>  >  the loop as above. I may do it tonight - 
>  >  I think the center freq of this node is 
>  >  290 to 385 Hz or so ? - fixed. Does anybody 
>  >  think there's a chance for an interesting 
>  >  response on this. ? 

williambhan at yahoo.com

 

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