vac tubes / was Re: Schematics of Atanasoff-Berry

[Roy J. Tellason]

On Wednesday 03 September 2008 23:21, bfranchuk at jetnet.ab.ca wrote:
> William Blair wrote:
> > Right now, my goal is to build just an astable multivibrator clocking a
> > 4-bit counter.  To show the alternating state of the multivibrator, I'll
> > light the tube from below through the hole in the center of the socket
> > with a two-color LED and the states of the counter tubes will be
> > indicated by lighting them from below with a red or blue LED.  I've got
> > the special effects visualized, but that's the really easy part.
>
> Would not a green & red Ne-2 would fit the  mood better.
> If you have the HV why not go nixe tube?

Given 4-bit binary,  how many more tubes do you think it'd take to do the 
1-of-10 decoding?

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
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Information is more dangerous than cannon to a society ruled by lies. --James 
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