[sdiy] Centre tapped pots

[James Patchell]

http://www.oldcrows.net/~patchell/synthmodulesII/200-1018.pdf

Don't know if that does what you want...controls both gain and 
offset...both positive and negative...

At 08:54 PM 11/3/2006 +0100, Maarten Halmans wrote:
>Hi all,
>I am looking for centre tapped pots, Farnell used to sell Alps pots with a 
>centre tap, but they don't stock them any longer. Are there any 
>distributors, preferably in Europe, that sell them in low quantities or 
>are there any other manufacturers that produce centre tapped pots? I 
>want  to use these to create positive and negative
>modulation signals in the same way as it's done in the Oberheim SEM's. Is 
>there an electronic way to do the trick without a centre tapped pot, I 
>think I have seen such a circuit a while ago but I can't reproduce it. Any 
>pointers greatly appreciated.
>Thanks and best regards,
>Maarten
>

         -Jim
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