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Cgs synth

Index last updated: 2026-04-28 23:16 UTC

Message

Re: question regarding CGS37

2007-02-13 by Jan-Ahrent Czmok

On 13.02.2007, at 05:20, John Loffink wrote:

> I think that was Jeff Pontius's panel - no longer with us.
>
> It is a single CV Cluster.
>
> You can add the second Base and CV input by adding 100K resistors in
> parallel to the ones for the single Base and CV input. These go to
> op amp
> summing nodes so no extra mixer needed.
>
Okay, so let me try to get it right (and i surely will write a more
detailed information on my page
for all the others who have a similar design:

BASE1 jack goes to THRU jack then to BASE 1 pot right. middle BASE1
pot to IN pad on the pcb.
BASE2 jack goes to THRU jack then to BASE 2 pot right, middle base 1
pot to 100k ohms resistor, then to
IN pad on PCB.

The same applies to CV mod 1/2.

2) My assumption for the other pads (please tell me if i'm right:)

S/T pads are for the connection to EVEN/ODD SPDT
pad A - UP1
pad B - UP2
pad C - UP3
pad D - UP4
pad E - TOP
pad F - ??
pad K - DOWN1
pad J - DOWN2
pad I - DOWN3
pad G - DOWN4
PAD H - BOTTOM

If those are correct, i really start to understand to circuits much
better :-)

--jan

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