Z3 builders?

From: Dwight Elvey <elvey_at_hal.com>
Date: Fri Mar 5 11:23:50 1999

Jgzabol_at_aol.com wrote:
> I
> You need SOME amplifier element; just logic alone would not do.
> Neon lights for logic certainly would be possible, but neither convenient nor
> reliable in my mind, since the difference between ignition voltage and burning
> voltage
> is not that big. Diodes are MUCH more convenient AND a lot less expensive
> than Neon lights.
> John G. Zabolitzky

Hi
 Neon lights are good enough. They can make amplifiers
as well because of the negative resistance. Something
like a tunnel diode does. Many have made logic systems
with neon lights only, during the sixties. One of my
class mates made a neon light adding machine so it
can be done. I don't recall for sure but the
difference between the run and the fire voltage
of NE2's was something like 40V and 60V as I recall.
I could be a little wrong on these numbers.
Dwight
Received on Fri Mar 05 1999 - 11:23:50 GMT