PC Motherboard with a vacuum tube

From: William Donzelli <aw288_at_osfn.org>
Date: Sat Sep 7 22:53:00 2002

> Ah, yes; somewhere around here I also have some "duo diode hi mu
> triode" valves/tubes... There seemed to be a lot of interesting
> valves/tubes used in television sets, with many more elements in them,
> than those found in radios and stereo equipment.

Dou-diode-triodes were standard tubes in radios, actually.

I am pretty sure there was a quad triode produced, probably for the organ
industry. Quite a few very weird types were used (four plate dual
triodes, sextuple diodes, etc) - mostly used for frequency dividers.

William Donzelli
aw288_at_osfn.org
Received on Sat Sep 07 2002 - 22:53:00 BST