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Old January 14th 12, 05:48 AM posted to rec.radio.amateur.homebrew,rec.audio.tubes,sci.electronics.basics
Tom Biasi[_2_] Tom Biasi[_2_] is offline
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First recorded activity by RadioBanter: Mar 2008
Posts: 7
Default 7377 tube also known as QQE04-5-what was it for?

On Fri, 13 Jan 2012 21:07:23 -0800 (PST), wrote:
It is a transmitting tube with a 12.6 volt filament.
What do you need to know?
They do have some value today.

Tom

I just got four of these little buggers. What was it used for?