tubes age 72
Tubes have lots of problems. There is no one way fix for every thing. First
understand what problem has your tube and then apply the proper fix in the
correct dose.
Jerry, tires to explain this to us all very exactly and gets a rant from us.
Then we ask where he went............................
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Date: Sun, 26 Aug 2001 20:14:58 +0000
Subject: [R-390] Tube questions
Got some questions on tubes: What does the GB prefix mean, such as the GB
6DJ8? Also, I can't find any references on these tubes: 7984 and 8233. Can
somebody let me know what these were used for?
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Date: Sun, 26 Aug 2001 21:20:36 -0700
Subject: Re: [R-390] Tube questions
Barry, 7984 is a beam power amp tube, 46 watts, 13.5 volt filament, a
compactron for VHF transmitters, 8233 is power amp pentode, 10 watts, 6.3
volt filament for power/video, not sure what the GB is (Great Britain??) ( Glass
Bulb ??), exhausted the easy sources, GE tube manual and Tube Lore, Dan.
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Date: Mon, 27 Aug 2001 07:31:08 -0400
Subject: Re: [R-390] Tube questions
You might check with Nolan. It may stand for Good old Boy :) If it was at the end
of the number it's a glass bulb. When they converted the metal shield RCA's
over to glass they often put GB at the end of the number. I can't think of to many
times when they put something at the start of the number. The English CV stuff
and the usual things on transmit tubes are about the only ones that comes to
mind. I would *assume* it's the same as a 6DJ8 and go on and use it.
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Date: Mon, 27 Aug 2001 07:57:11 +0000
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