Yahoo Groups archive
Thread
2005-10-02 by peng3002
2005-10-02 by Richard Brewster
> The pulse outputs on my gate sequencer are putting out double
>triggers. It makes some of my envelopes stutter. Any suggestions on how
>to allieviate this? Hysteresis on the output op amps?
>
>hmm,
>peng
>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
2005-10-02 by peng3002
--- In cgs_synth@yahoogroups.com, Richard Brewster <pugix@e...> wrote:
> I had a similar problem with the Burst Generator. It was very
difficult
> to track down. The solution was to replace the 4017 with a *Texas
> Instruments* part. Some 4017 chips can internally retrigger. If
you
> have socketed these, it's an easy thing to try.
>
> -Richard Brewster
>
> peng3002 wrote:
>
> > The pulse outputs on my gate sequencer are putting out double
> >triggers. It makes some of my envelopes stutter. Any suggestions
on how
> >to allieviate this? Hysteresis on the output op amps?
> >
> >hmm,
> >peng
> >
> >
> >
> >
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
2005-10-02 by sasami@hotkey.net.au
>I had a similar problem with the Burst Generator. It was very difficult_______________________________________________________________________
>to track down. The solution was to replace the 4017 with a *Texas
>Instruments* part. Some 4017 chips can internally retrigger. If you
>have socketed these, it's an easy thing to try.
>
>-Richard Brewster
>
>peng3002 wrote:
>
>> The pulse outputs on my gate sequencer are putting out double
>>triggers. It makes some of my envelopes stutter. Any suggestions on how
>>to allieviate this? Hysteresis on the output op amps?
>>
>>hmm,
>>peng
>>
>>
>>
>>
>>
>>The CGS Modular Synth home page: http://www.cgs.synth.net/
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
2005-10-02 by sasami@hotkey.net.au
> Thanks for the response Richard. I had done the chip swapping whenThis behaviour would suggest a capacitive coupling inside your envelope
>I had this on the breadboard and some 4017 would skip steps and
>generally behave erratically. I'll try the TI one, but I'd like to
>see if the circuit could be made to depend less on the type of chip
>being used. back to the BB.
> The gate and full outputs are fine. On a scope, it almost looks
>like the stuttered pulse fires at the same time the Full output
>falls. I'll keep experimenting.