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 Forum index » Instruments and Equipment » Modular Synthesis
Gate to trigger converter
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RogerGPan



Joined: Aug 12, 2011
Posts: 5
Location: Munich | Germany

PostPosted: Wed Aug 17, 2011 1:51 pm    Post subject: Gate to trigger converter Reply with quote  Mark this post and the followings unread

I need to generate a very short trigger (as short as possible) impulse from an gate signal.
How can I accomplish this? Are there any modules?

Background is that I (for example) wanna retrigger an LFO when a note is pressed on an Doepfer Ms404 / A100 modular system.

Thanks!!!
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wmonk



Joined: Sep 15, 2008
Posts: 485
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Wed Aug 17, 2011 3:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

I don't know of any modules out there, but I do know a DIY solution. It is a real simple project from Ken Stone (CGS) and fits the purpose perfectly Very Happy

http://cgs.synth.net/modules/cgs24_gatetotrigger.html

Cheers,
Woody

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Kits for synthesiser modules in Europe
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RogerGPan



Joined: Aug 12, 2011
Posts: 5
Location: Munich | Germany

PostPosted: Wed Aug 17, 2011 3:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

ah cool thanks!
Do you sell those as shipment from the us seems to be problematic?
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wmonk



Joined: Sep 15, 2008
Posts: 485
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Wed Aug 17, 2011 3:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

Oops I forgot. Embarassed
Indeed he seems to have problems shipping to Germany from Australia. If you could wait a little longer, I could order one (or a few) of those boards with my next pcb order at CGS.
But this project is pretty easy, so should be doable on stripboard. Cool

Cheers,
Woody

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jags



Joined: Mar 28, 2013
Posts: 2
Location: Kona, Hawaii

PostPosted: Thu Mar 28, 2013 1:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

I need to do just the opposite. I need to go from a short 3ms 5v pulse to a longer pulse of at least 10ms 5v. What would be great is a simple circuit that will take the short trigger and regenerate a new pulse that can be pulse width adjusted with a pot anywhwere from 10ms to maybe 1 second.

Any ideas or suggestions?
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