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CGS64 VCA Question

2013-05-07 by janczmok

Hi,

i am building up two CGS64 and after some initial issues, they "partially" work both on which i need some help:

- powered 12V eurorack
- VCAs are SSM2210.
- I can calibrate the CV bleed fine,
- I can't cablibrate the "input muting" when there's no CV input, i am not getting it
silent.

As it is a rather easy circuit, i am wondering where the error could be found, as it is on both builds.

FYI, i am not using an external initial gain pot and no input pot., the only pot i have is for the the VCA CV.

Thanks for help

Re: CGS64 VCA Question

2013-05-07 by cg_synth

If the CV INIT trim isn't able to trim it out, I'd look at the discrete
transistors. Make sure you have them in the right way around.

Show quoted textHide quoted text

>Hi,
>
>i am building up two CGS64 and after some initial issues, they "partially"

work both on which i need some help:

>
>- powered 12V eurorack
>- VCAs are SSM2210.
>- I can calibrate the CV bleed fine,
>- I can't cablibrate the "input muting" when there's no CV input, i am not

getting it

> silent.
>
>As it is a rather easy circuit, i am wondering where the error could be

found, as it is on both builds.

>
>FYI, i am not using an external initial gain pot and no input pot., the

only pot i have is for the the VCA CV.

>
>Thanks for help
>
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>

_______________________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>

Cgs synth

CGS64 VCA Question

CGS64 VCA Question

Re: CGS64 VCA Question

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