TTL homebrew CPUs

[William Donzelli]

> If you want to use a neon bulb (or a gas triode) as a sawtooth
> oscillator (one of the more useful aspects of a relaxation
> oscillator), you can improve the linearity of the charge ramp by
> using a very high 500vdc or more) supply voltage and a large series
> resistor.

I have a number of new RCA 884 and 885 tubes for just this purpose, if
anyone needs them. I want to get rid of them, as they are really slow
movers. I may also have DuMont 6Q5Gs new.

--
Will