7377 tube also known as QQE04-5-what was it for?

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

 

[Tom Biasi]

On Fri, 13 Jan 2012 21:07:23 -0800 (PST), rrusston@hotmail.com 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?

 

[mick]

On Fri, 13 Jan 2012 21:07:23 -0800, rrusston wrote:

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

VHF push-pull transmitter, like the rest of the QQ series. Double tetrode
with a common cathode and common g2. Interesting pinout isn't it?

I have some QQV03-10 valves that I intend to try for audio. They are
supposed to be quite good.

FU set to rec.audio.tubes

--
Mick (Working in a M$-free zone!)
Web: http://www.nascom.info
Filtering everything posted from googlegroups to kill spam.

 

[Fred Abse]

On Sun, 15 Jan 2012 11:09:09 +0000, mick wrote:

VHF push-pull transmitter, like the rest of the QQ series. Double tetrode
with a common cathode and common g2. Interesting pinout isn't it?

I have some QQV03-10 valves that I intend to try for audio. They are
supposed to be quite good.

Both types incorporate built-in neutralizing capacitors for VHF/UHF
push-pull operation. Easy to tame up to 450MHz. Wasted on audio.

FU set to rec.audio.tubes

FU set to sci.electronics.basics, else I shan't see it ;-(

--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)