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Re: more stupid questions: triggers

2008-05-29 by jjsynth

falling edge: that i extrapolated from a post by ezra buchla (msg
#618) where he explains about pulses used for clocking a sequencer. he
wrote: ... you could also use an analog pulse as a clock any voltage
with a
(>=10v) -> (<10v) transition will work as long as the voltage source
and the 200e share a ground. ... which I interpreted as triggering on
the falling edge of the pulse. But maybe I'm completely wrong, that's
why I asked.

regards,

J


--- In 200e@yahoogroups.com, "Mark Verbos" <verbos2002@...> wrote:
>
> Who said Buchlas trigger on the falling edge of a trigger? A 281 has a
> switch to select between AD and AR responses. What's happening when
> that switch is thrown is that the level is being shifted so that the
> input comparator is responding to either the 10 volt spike at the
> beginning or the 5 volt gate (with duration). The length of the spike
> at the beginning of a Buchla pulse is very short, but that really has
> no bearing on the speed of the triggering. I would worry more about
> the Serge sending out 5 volt gates. With those, you should be unable
> to use the AR mode on the 281.
> 
> 
> Mark
> 
> 
> 
> 
> 
> --- In 200e@yahoogroups.com, "jjsynth" <jjsynth@> wrote:
> >
> > hello,
> > 
> > after reading most of the posts in the archive I've come to understand
> > that the falling edge of a pulse with a max level > 10V serves as a
> > trigger (leading me to believe that this trigger pulse must have a
> > very short duration). Has anyone in the group successfully triggered a
> > 281e from a Serge? I have read that someone uses a TKB with his
> > Buchla, but I am not sure how you would get a trigger to the Buchla
> > that is in sync with other envelopes in the Serge when these are
> > triggered on the rising edge whereas the Buchla triggers in the
> > falling edge... 
> > 
> > thank you for your help,
> > 
> > J
> >
>

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