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Tubes V's Semiconductors in Military.
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Lord Valve
Posts: n/a
wrote:
A curiosity in my collection: some JG-5751s by General Electric,
packed in May 1963. On the boxes are printed a little 3-leaf radiation
symbol, followed by the number 0.00001.
I'm guessing these tubes were hardened against gamma radiation, by
reducing the atmosphere in the bulb to an extra-small value indicated by
the number.
Any info, lore?
They usually only put that symbol on *sources* of radioactivity.
Lord Valve
American
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