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Cgs synth

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Re: CGS76 Serge 1973 Env Gen question

2013-08-03 by ghpicard

--- In cgs_synth@yahoogroups.com, Stephen Richards <okayjustalittle@...> wrote:

> 33K# x 2 (Window size CV and Hold Input)
They are pull down resistors.

>22K# x 2 (Duration pot CW and CCW)
They are part of two voltage dividers that feed the + and - inputs of a summing amplifier (the LM3900). They must be there.

> Just need to know if the 2.2K and 1.8K in the 6V regulator section are supposed to be put in or left out. I'm not installing in a Vintage Serge.
>
Yes you need them to get 6V out of the 15V input. The 6V "regulator" is just a buffered voltage divider.

Best regards
Gaston

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