[sdiy] positive/negative envelopes...

[Jim Patchell]

    If you can wait until I get home tonight, I will make a sketch...it is very simple....

    I know the circuit you want is on the web...someplace...hopefully somebody can point
you there first.

    -Jim

    IDuane R Balvage wrote:

> Hello all-
>
> Anyone have an idea how to implement positive/negative going envelopes from a positive
> envelope with one pot and one op-amp?
>
> I would like to put in a control that works like this:
>
>            neg    0    pos
>            ---/\/\/\/\---     VCF Env amt
>                   |
>                   |
>
>
> See what I am saying?
>
> I'm pretty sure this is possible, I just can't remember how to do it....
>
>                         -Duane
>
> --
>
>
>        "A word to the wise ain't necessary. It's the stupid ones
>                            who need the advice."
>                          - Bill Cosby
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