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Old 13th June 2002, 03:36 PM   #1
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Default Need GU-81m data

I am trying to find data on the GU-81m pentode I am realy interested in how much the grid can disipate if I use the tube
in inverting mode and what the cathode voltage/current requirements are.

Thanks in advance,


Woody AKA bob12345678
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Old 13th June 2002, 04:32 PM   #2
TG is offline TG  Ukraine
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Hello bob12345678,

You can find some date on that tube at
http://www.tubes.ru/techinfo/AmateurRadio/gu-81m.html

Good Luck!!!
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Old 20th June 2002, 09:08 AM   #3
dhaen is offline dhaen  Europe
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You seem determined to get Inverted Mode to work.

Have you seen Steve Bench's work:
http://members.aol.com/sbench102/inverted.html

It might be good to try e-mailing him too.

Please let us know if you make any progress!
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