Cgs synth

Hi Ken

I'm putting together a BOM for the BOG panel and just wanted to ask about the Trimpot.

I'm finding it very hard to find a supplier for 22 or 25K Single turn Vert. or Horiz. trimpots.

When i built up the CGS77 PCB for the Best of CGS Panel #3 , i used a 20K Single turn Vert.

Should i do the same for the BOG or go for a 30K ?

Stephen

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Hi Stephen.
Go for the 20k. These days I usually specify "20k, 22k or 25k". Tolerance is
really sloppy on these, and being adjustable, it really doesn't matter.
Also, it is used as a voltage divider across +ve to 0V, again making the
exact value of little import.
With the exception of the 50k Q pot, all other pots and trimmers could be
100k and it would still work fine.

Cheers,
Ken