Tube Challenge!!

Harry Bissell harrybissell at prodigy.net
Tue Nov 30 07:53:52 CET 1999


If you want "tube" white noise just build an FM broadcast receiver... and
tune it to "no station"... I've used this as a noise source since before I
owned a synth... fiddling with the tone controls can give a decent "surf"
imitation...

:^) Harry (totally tubeular ???) Bissell

KA4HJH wrote:

> >  >That could be fun, you could use a tube geiger counter to
> >  >generate random noise.
> >
> >What's a geiger counter??  I thought it was a device used to measure
> >background radiation.  I have no idea how they work.  Getting parts is
> >difficult enough without searching for plutonium on the black market :)
>
> Measuring background radiation with any device would give you noise
> but not at AF (Buchla fans might not care). You need something
> radioactive to speed up the counts. I have a jar of uranyl acetate
> that livens things up. My radium clock isn't working as well--I guess
> the half-life catches up with us all (doesn't tell time anymore,
> either).
>
> Does anyone know of a source for Geiger-Mueller tubes? There was a
> guy selling brand new scintillation counters at local hamfests for
> $50--a couple of years ago. 8(
>
> Terry Bowman, KA4HJH
> "The Mac Doctor"
>
> ICQ: 45652354




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