[Milsurplus] japanese tubes

[PHIL]

The Japanese had miniture tubes during WW2
The tube type was a Uy-11m
It probably was as take of off the Hytron hearing aid tube
Both had 5 pin bases, that looked like a miniture version
of the standard 5 pin base, such as the base of a UY-227
The Uy-11m was a tetrode. I don't have any more information
on it. I was given about 5 such tubes a long time ago
Phil
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