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Re: OT: cgs69 modules, use for casio clock to trigger?

2008-07-03 by Jason Proctor

you could perhaps use the gate converter module. 4 comparators on a
little PCB. tweak the comparison point down a bit perchance.

http://cgs.synth.net/modules/cgs56_gatecon.html



>thanks Mark,
>
>I found the triggers via an LED with 2k res. to ground. pooked the
>positive leg on the pcb traces until it lite or flashed. The
>brightness was pretty good. When the led was on the triggers for the
>hi hat, the sound of the hi hat changed, closed hh and conga were
>not affected. I think they are positive pulses? An OR gate would be
>right.
>
>maybe a simple PNP tranisotr? next is to get the pulses up to at
>least +5v, right?
>
>thanks for your suggestion!
>
>JEff
>
>
>--- In cgs_synth@yahoogroups.com, Mark <yahoogroups@...> wrote:
>>
>>
>> Imho, the first step would be to figure out what sort of signal you
>> have. Is it a positive voltage, negative voltage, or a collector??
>> What is producing it or what is it driving?? From that you can get
>> an idea how much current it can sink or source. Then that will
>tell
>> you what sort of buffer you might need.
>>
>> As far as being able to find a trigger that occurs on every 16th,
>you
>> can OR them together (using diodes or logic).
>>
>> On 7/2/08, Jeff Foster put forth:
>> >hi folks,
>> >
>> >general interfacing question.
>> >
>> >I would like to drive my sample and hold
>> >modules from my casio mt-68. The casio has analogs drums and I
>have
>> >found on the pcb the clock signals for the open and closed hi-
>hat.
>> >I figure this will give me 16th notes which can be
>> >divided down for other division if needed. although not all
>patterns
>> >use HH. might add in the conga hit as well.
>> >
>> >I image some type of buffer circuit is required to interface the
>> >clock with the trigger in on the s/h?
>> >Would the "Dev-mod Gate/Trigger block" of Ken's work(CGS69)? would
>> >also like to run it off of single supply (casio is 7.5 or 9v).
>> >Maybe simple transistor buffer is all that is needed? I was
>thinking
>> >a transistor "AND" gate and tie one side high and then feed the
>> >casio triggers to the other side. would that be enough to get a
>> >clean triggers with out loading down the casio logic ?
>> >looking for simple, single supply soultion.
>> >suggestions?
>>
>
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
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>
>
>

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