Thanks for the info Ken. I've been using it fine with an attenuator on the output. I'm have mostly Frac and DIY modules, with 1 Euro and 1 or 2 DIY running on 12V, so I will just watch it with those ones. I will keep an ear out for anyone else experiencing the same thing, but I suspect there is nothing wrong with it. Thanks for making such a great device available!
- Kevin
- Kevin
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> A 20 turn trimmer will not increase your range of adjustment.
> Most modulars would be unphased by seeing 15 volts at an input. Remember
> that this voltage is current limited by both input and output resistors. For
> example, the Serge is stated as being able to handle 25V at its inputs
> without issue. It won't worry any of my designs either.
> I would avoid plugging a hot voltage into an Analog Solutions module though!
> I don't know the cause of this. It may in fact be operating correctly for
> what you are doing to it. At the moment I am not in a position to test this
> out myself.
> Ken
>
> >OK here is some more info.
> >
> >Most people seem to have difficulty with the transistor pin-outs not
> matching the circuit. I don't think this is the problem here. The module
> functions perfectly (except for hot output), and the transistors were
> supplied in an Elby kit. I have emailed Laurie to see if the transistors he
> supplied are correct (can't seem to find a datasheet for them).
> >
> >Also the calibration trimmer does offset the hot output voltage, but no
> where near enough. I was wondering if a 20 turn trimmer here would allow me
> to drop the voltage of the output right down whilst still maintaining the
> correct triangular waveshape?
> >
> >Like I said it only outputs high voltages when its being triggered.
> >
> >It's completely useful as it is, I just have to attenuate the output. Not
> comfortable send 15v signals around the modular. Or do I not need to worry
> about this at all? I know it distorts my VCAs pretty quick.
> >
> >Any help much appreciated!
> > - Kevin
> >
> >--- In cgs_synth@yahoogroups.com, "scozbort" <kevin.babbage@> wrote:
> >>
> >> Hi!
> >>
> >> Can't believe I only just found this place...
> >>
> >> I'm having an issue with my VCS build and hoping someone has come across
> it before.
> >>
> >> When I use the trigger in and slow fall times the module outputs very hot
> voltages - I think it would go to 15v if I let it.
> >>
> >> But in cycle mode it outputs normal voltages.
> >>
> >> I suspect a wiring fault but I can't see any mistakes, unless of course I
> have misunderstood how to wire it up - which is likely!
> >>
> >> Hoping its an easy fix and thanks in advance
> >> - Kevin
> >>
> >
> >
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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>