200e

on this group, we are generally talking about 200e modules...

the 281e reads pulse inputs digitally. it uses a built-in comparator
on the cpu. my guess is that it will trigger on lo-hi transitions, but
i have neither a datasheet nor a module in front of me t confirm that.

eb

On Thu, May 29, 2008 at 11:27 AM, Mark Verbos <verbos2002@yahoo.com> 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
>>
>
>