The VT in these tube numbers refers to the military designation from
W.W.II. "VT" stands for "victory tube". I do not have a cross
reference of these at work, but I know the VT4C is a type 211 triode.
I assume the VT4B is similar. There were about 200 of the VT-series
of tubes. Most crossed to commercial tubes, but a few were military
specials. For those interested, I can bring in the cross-reference
tomorrow.
73, Dr. Barry L. Ornitz WA4VZQ ornitz_at_eastman.com,
ornitz_at_tricon.net
> From: Dr. Warren H. Ziegler [SMTP:WZiegler_at_ix.netcom.com]
> Unfortunately VT4B, VT30, VT31, etc. are only the schematic symbols
> for the tubes in a particular circuit - much as a modern schematic
> might use Q1, Q2, etc for transistors or IC1, IC2, etc to designate
> integrated circuits. Knowing that a transistor is refered to as Q1
> or a tube is refered to as VT30 in a particular circuit is not
> sufficient to identitify it's type. >
Received on Mon Oct 06 1997 - 09:23:56 EDT
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