[sdiy] (de)coupling capacitors

Theo t.hogers at home.nl
Sun Jul 18 19:54:57 CEST 2004


With these tube amps the coupling caps are 10n ...100n.
So there is no real need there.
If a large value would be needed we would redesign before resorting to a
elco.
My dad is the main designer of these amps.
He does tubes while sleeping, but is more phobic for trannies than some pp
you might know for BBD.
I do just some pepper 'n salt stuff, like the use of parallel caps or adding
slow start to the power supplies :)

Theo



----- Original Message -----
From: Glen <mclilith at charter.net>
To: Theo <t.hogers at home.nl>; harrybissell <harrybissell at prodigy.net>
Cc: M.A. Koot <makoot at gmx.net>; <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, July 18, 2004 10:05 PM
Subject: Re: [sdiy] (de)coupling capacitors


> At 10:02 AM 7/18/04 , Theo wrote:
> >
> >Using a smaller value plastic cap parallel to a elco is what we use for
> >cathode decoupling in the Tidal tube amps.
> >At least at a subjective level it seem to work well.
> >
> >Theo
>
> Do you also do this with the signal coupling caps? (Which is what I
> referred to some people doing.)
>
> I think most people here would agree about the multiple caps being used
for
> power supply de-coupling and such, for reasons that Harry already listed.
>
>
> later,
> Glen



More information about the Synth-diy mailing list