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Nerdseq Triggers to Doepfer A-142-2
#21
Hi, Excuse me chipping in....I agree with XORadmins comment to me earlier in the thread - I dont think the issue is the rising edge, this looked fine, I feel it was the voltage level i.e. the Doepfer module need a solid 5v or more. The A-183-4 I bought makes the NerdSEQ trigger a full 5v and problem solved. In accordance with the 'spec' we should not need an absolute 5v, but in my case, my modules (A-111-6 and A-142-2) do. FYI this is one of the exchanges I had with Doepfer which talked about edges (not the problem) and led me to the A-183-4:
> > Hello,
> >
> > I'm sorry about the problems with the modules. I suppose that it has to do
> > with the level and/or slew rate of the gate signal. Both the A-111-6 and A-
> > 142-2 use envelope generators based on the CEM3310. The CEM3310 required an
> > internal trigger signal which is derived from the gate signal by means of a
> > capacitor. If the rising edge of the gate signal is not fast enough or the
> > level is not sufficient the trigger signal is not generated as required.
> > Please try another gate source (e.g. LFO rectangle or any other rectangle
> > signal) to find out if then it works.
> >
> > We also will release a new module (A-183-4) soon that works as a quad level
> > shifter and slope enhancer.
> >
> > Best regards
> > Dieter Doepfer

Cheers
Tony
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Messages In This Thread
Nerdseq Triggers to Doepfer A-142-2 - by TonyBunn - 07-02-2020, 09:46 PM
RE: Nerdseq Triggers to Doepfer A-142-2 - by TonyBunn - 09-04-2020, 02:41 PM

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