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1. [Amps] Replacement tube for 4-1000a (score: 1)
Author: Dennis Goebel <radios1236@yahoo.com>
Date: Wed, 8 Dec 2010 12:21:29 -0800 (PST)
I have found it increasingly difficult to locate good 4-1000a tubes. Just wondering what would be a good replacement tetrode for the 4-1000a in grid driven service. Not grounded grid. Obviously it do
/archives//html/Amps/2010-12/msg00070.html (7,630 bytes)

2. [Amps] Replacement tube for 4-1000a (score: 1)
Author: Dennis Goebel <radios1236@yahoo.com>
Date: Sun, 19 Dec 2010 13:51:45 -0800 (PST)
I'm going to give a russian tube a try GU-43B. Anyone know how to condition a NOS tube like this that's been sitting around since 1985? _______________________________________________ Amps mailing li
/archives//html/Amps/2010-12/msg00258.html (7,048 bytes)

3. [Amps] Replacement tube for a 4-1000a (score: 1)
Author: Dennis Goebel <radios1236@yahoo.com>
Date: Sun, 19 Dec 2010 14:29:08 -0800 (PST)
Thanks Alek You mean you don't have to draw any anode current to condition it? There must be some getter material on the cathode structure. Dennis _______________________________________________ Amps
/archives//html/Amps/2010-12/msg00261.html (6,375 bytes)

4. [Amps] QRO-PARTS.com very rude behavior (score: 1)
Author: Dennis Goebel <radios1236@yahoo.com>
Date: Sat, 9 Apr 2011 09:01:49 -0700 (PDT)
I had the same results when submitting a query about shipping. He replied with name calling and using language that I will not repeat here. I'm sure they have very high quality and reasonably priced
/archives//html/Amps/2011-04/msg00310.html (6,959 bytes)

5. [Amps] Is there anyone else in the USA experimenting with GU43B tubes? (score: 1)
Author: Dennis Goebel <radios1236@yahoo.com>
Date: Mon, 30 May 2011 15:47:52 -0700 (PDT)
Just wondering if there is anyone else in the USA experimenting with the russian GU43B tube? I have an amplifier working on HF. Pictures can be seen at QRZ.com for kd7yqm. I have queried many in othe
/archives//html/Amps/2011-05/msg00277.html (6,793 bytes)

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