[sdiy] Hollow low-pressure ladder filter

[John L Marshall]

12U7s were designed for car radios, 12 volt plate supply, 30 volts maximum.

Take care,
John


----- Original Message -----
From: René Schmitz <uzs159 at uni-bonn.de>
To: Tim Ressel <madhun2001 at yahoo.com>; <epeasant at telusplanet.net>; Synth-Diy
<synth-diy at dropmix.xs4all.nl>
Sent: Sunday, April 28, 2002 4:46 PM
Subject: Re: [sdiy] Hollow low-pressure ladder filter


> Hi Tim et al,
>
> At 15:37 28.04.02 -0700, Tim Ressel wrote:
> >According to the data sheet curves, at the low
> >currents I am using the voltage drop will be less than
> >2 volts. I am wiring up the chain right now, so I will
> >find out first hand what the drops are.
>
> Sounds reasonable, since these were used as small signal
> rectifiers.
>
> >> When you get the ladder working, you should then try
> >> to replace the rest of
> >> the solid state parts in the signal path with tubes.
> >
> >I have thought of that. It is a possibly.
>
> Would be difficult to run on 15V I'd guess.
>
> Cheers,
>  René
>
>
> --
> uzs159 at uni-bonn.de
> http://www.uni-bonn.de/~uzs159
>
>
>