Yahoo Groups archive

Cgs synth

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

Thread

CGS33 Serge Positive Slew capacitor values

CGS33 Serge Positive Slew capacitor values

2015-07-20 by Richard Brewster

I'm building a Dual Positive Slew and find that the capacitor list
doesn't match the PC board. There are two 0.1uf bypass caps on the
board (both on +V), but 4 called out. Also there are 4 100n mylar caps
listed, but only 2 on the board. Moreover, there are two 330n caps
listed. I think that the 330n should be used for the integrator
capacitors, not 100n, because 330n is the value used in the same place
for the Negative Slew. Am I right?

Thanks,

Richard Brewster
http://pugix.com

Re: CGS33 Serge Positive Slew capacitor values

2015-07-20 by Ken Stone

Follow what is on the PCB. It appears I did a cut-and-paste from the Neg slew parts list, then forgot to finish editing it. 100n is the correct value for the integrator caps.
Thanks for pointing out the error.
Ken
Show quoted textHide quoted text
On Tue, Jul 21, 2015 at 8:04 AM, Richard Brewster pugix@... [cgs_synth] <cgs_synth@yahoogroups.com> wrote:

I'm building a Dual Positive Slew and find that the capacitor list
doesn't match the PC board. There are two 0.1uf bypass caps on the
board (both on +V), but 4 called out. Also there are 4 100n mylar caps
listed, but only 2 on the board. Moreover, there are two 330n caps
listed. I think that the 330n should be used for the integrator
capacitors, not 100n, because 330n is the value used in the same place
for the Negative Slew. Am I right?

Thanks,

Richard Brewster
http://pugix.com




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

Re: CGS33 Serge Positive Slew capacitor values

2015-07-20 by Richard Brewster

Thanks, Ken!

On 7/20/15 6:51 PM, Ken Stone otherunicorn@... [cgs_synth] wrote:
Show quoted textHide quoted text
Follow what is on the PCB. It appears I did a cut-and-paste from the Neg slew parts list, then forgot to finish editing it. 100n is the correct value for the integrator caps.
Thanks for pointing out the error.
Ken

On Tue, Jul 21, 2015 at 8:04 AM, Richard Brewster pugix@... [cgs_synth] <cgs_synth@yahoogroups.com> wrote:

I'm building a Dual Positive Slew and find that the capacitor list
doesn't match the PC board. There are two 0.1uf bypass caps on the
board (both on +V), but 4 called out. Also there are 4 100n mylar caps
listed, but only 2 on the board. Moreover, there are two 330n caps
listed. I think that the 330n should be used for the integrator
capacitors, not 100n, because 330n is the value used in the same place
for the Negative Slew. Am I right?

Thanks,

Richard Brewster
http://pugix.com




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

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.