William Donzelli wrote:
Certainly, multifunction tubes were around - the first
ones were the dual
diodes and rectifiers of the 1920s, then later twin triodes, extra diodes,
and yes, to the ultimate Compactrons.
I've just remembered that Magic Eye valves/tubes have (I think)
an amplifying triode in the same envelope as the indicator. And I
think they're internally linked together. Does anyone have any
data on these gadgets that would show this sort of information?
--
John Honniball
coredump at gifford.co.uk