Finished a new module

[Gene & Debby Stopp]

Eric, if you do much more of this I will have to go find my high voltage
scope probe and dust off the VTVM :)  So far the only valve-glow in my
garage is from audio amps and Hammond organs, but if you persist in this
maddeningly intriguing project reporting, that may change soon. (I hate it
when some unexplored science takes over my brain!).

Will you, perchance, scan up some simple schematics onto a web page, or
somehow otherwise provide guidance to those of us who are
thermionically-challenged....

- Gene

----------
> From: Eric Barbour <svetengr at earthlink.net>
> Date: Wednesday, July 30, 1997 9:53 AM
> 
> It's a quad VCO, made with only 5 tubes. Four 5696 thyratrons
> and a 12AT7.
> 
> It's fat, baby.
> 
> Tech-heads will not be happy, no doubt some of them will claim that such
> a primitive circuit can't possibly work and be stable. Sorry.....
> 
> An extra bonus: the ionized argon is visible from the sides of the
> 5696s due to their unusual construction, with an open anode consisting
> of a narrow strip of metal with the control electrodes behind it.
> It gives a nice purple haze which pulses visibly as the oscillator
> pitch goes up and down.
> 
> -- 
> Eric Barbour
> Svetlana Electron Devices
> Portola Valley CA USA