Got IT!!!! After hours of trouble shooting i figured out it was not the
transistors, then it was not the caps, so i was left with the diodes. I had
originally thought that these diodes where from a different manufacturer
that i have used in the past so maybe for some unknown reason that don't
work. I am thinking anything to get this thing to work. So i still have some
of the old diodes and start removing the newer ones. One of the pads pops
right off as soon as i get the solder wet. So that was my problem. I get
everything back together and great sounding filter!!!!
Thanks for all your help. I guess this board just has bad traces or the
copper is too thin.
Josh
transistors, then it was not the caps, so i was left with the diodes. I had
originally thought that these diodes where from a different manufacturer
that i have used in the past so maybe for some unknown reason that don't
work. I am thinking anything to get this thing to work. So i still have some
of the old diodes and start removing the newer ones. One of the pads pops
right off as soon as i get the solder wet. So that was my problem. I get
everything back together and great sounding filter!!!!
Thanks for all your help. I guess this board just has bad traces or the
copper is too thin.
Josh
On 3/31/06, ken johnston <betweenpie@...> wrote:
>
> Have you checked that the actual circuit-board trace is working at the
> 2.2 cap? When I built mine (which I was never able to get to fully work,
> alas), I found the traces to be very delicate and easily destroyed by
> only a couple of resolders, that is, they'd break where the trace meets
> a mount point. So try a patch or two - that may be it.
>
>
> Richard Brewster wrote:
>
> > These caps are critical. I used Mouser 23PS222, Polystyrene Film
> > Capacitors. Same capacitor as in the CGS VCO.
> >
> > http://www.mouser.com
> >
> > -Richard Brewster
> >
> > josh summitt wrote:
> >
> > >Still not getting it. I have been tracing my input though the circuit
> > and i
> > >loose it entirely at the 2.2nF Capacitors. so i have no input into
> > the base
> > >of the 2n2222. I have no idea what is wrong unless i have the wrong
> > >capacitors. Does it matter here what type of capacitor that you use. I
> am
> > >useing Polyethylene Metalized Film capacitors. I can not imagine that
> > this
> > >would cause any problems. What kinda of caps are you guys using that
> > got the
> > >filter to work?
> > >Josh
> > >
> > >On 3/30/06, josh summitt <ascetik@...> wrote:
> > >
> > >
> > >>Well thanks, i'm going to hash out whats wrong with them tonight. I
> love
> > >>the samples of this filter and cannot wait to get it finished.
> > >>Josh
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>
>
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