[sdiy] Inverting/noninverting attenuator circuit

[Scott Bernardi]

http://home.comcast.net/~sbernardi/elec/og2/vcfbank_mstrcv.gif
See the section around U7:C. The wiper of the CUT/BOOST pot will 
continuously vary between inverted/non-inverted version of the the MSTR 
VAR CV input.

j vallier wrote:

> Hi
>
> Anyone have a simple circuit for taking a signal and creating 
> inverting/noninverting outputs with a single knob that mixes between 
> them? Kinda similar to the Serge paradigm of CV signals--even better 
> would be the "dead spot" Serge attenuators seem to have at the 12 
> o'clock position...
>
> I want to use it to mix either + or - audio feedback in a circuit I'm 
> building. I found a possible example with the input on Tim Ressel's 
> VCLFO circuit on his website. If there's any better ideas, I'm all ears.
>
> thanks
>
> Peff
>
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-- 
Scott Bernardi
sbernardi at comcast.net