VOMs (WAS Re: SBC6120 (a build-it-yourself PDP-8 clone) grammer checked)

Chuck Guzis cclist at sydex.com
Fri Jun 16 00:52:36 CDT 2006


On 6/15/2006 at 10:37 PM Fred Cisin wrote:

sounds nice
>but what is a "solid state vacuum tube" volt meter ???

I think it works like this--you take a 12AX7, and, using a diamond file,
carefully cut the tip off.  Fill it with a good polyester resin and glue
the tip back on.  Absolutely solid!  Put that in your Eico!

Anyone remember the April Fool's joke article in (IIRC) 73 many years ago
that advocated filling vacuum tubes with brine to improve conductivity?

Cheers,
Chuck







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