Finished a new module

[Jim Shearer]

In message <33DF717C.6D1D at earthlink.net>, Eric Barbour
<svetengr at earthlink.net> writes
>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.
>
Wow, nice! 
   How wide can you sweep this baby? Square or sawtooth (actually, with
thyratrons, I'd guess sawtooth) I don't suppose there's any chance of
V/oct? I (among many, I guess) would love to see the scematics for this,
perhaps this the beginning of a Grand Project (Filter ideas, anyone?).
I can't help thinking of the warmth of a Moog, times ten!! :)
Great
--Jim Shearer jim at base.demon.co.uk