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Cgs synth

Index last updated: 2026-04-28 23:16 UTC

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Re: steiner filter problems

2006-03-31 by ken johnston

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




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