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Total 7 documents matching your query.

1. [Amps] What Do you think? (score: 1): Author: Arnie Pfingst <arnie123@hotmail.com>; Date: Thu, 8 Sep 2016 18:43:45 +0000; I'm interested in buying a home built amp using two 3-1000 (or 4-1000 i dont remember which). I had the opportunity to try it. HV is at 3500 volt under load, and the Ip meter goes to 1 amp, I drove i; /archives//html/Amps/2016-09/msg00011.html (7,074 bytes)
2. Re: [Amps] What Do you think? (score: 1): Author: mike via Amps <amps@contesting.com>; Date: Thu, 8 Sep 2016 14:56:20 -0400; It should last forever. --Original Message-- From: Arnie Pfingst <arnie123@hotmail.com> To: amps <amps@contesting.com> Sent: Thu, Sep 8, 2016 2:49 pm Subject: [Amps] What Do you think? I'm interested; /archives//html/Amps/2016-09/msg00012.html (8,294 bytes)
3. Re: [Amps] What Do you think? (score: 1): Author: Bill Turner <dezrat@outlook.com>; Date: Thu, 8 Sep 2016 21:44:18 +0000; Something is wrong with the numbers. 3500 V at 500 mA is 1750 watts DC input. If you were measuring 1500 watts RF output, that would be an efficiency of about 86%, which is impossible with a class AB; /archives//html/Amps/2016-09/msg00014.html (8,667 bytes)
4. Re: [Amps] What Do you think? (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Sat, 10 Sep 2016 14:55:50 +0000; Was the tube's plate glowing. If it was a solid cherry red it should be dissipating a good 1kW which means that it is putting out about 750 Watts. Your statement about heat it was putting out got my; /archives//html/Amps/2016-09/msg00020.html (9,946 bytes)
5. Re: [Amps] What Do you think? (score: 1): Author: Clark Turner <Clark@ClarkTurnerTuning.com>; Date: Sat, 10 Sep 2016 08:52:42 -0700; We really need pictures of the amp. But at $900. Its almost a safe bet. The 3-1000 is the superior tube for ham radio use and will work at those lower voltages. The 4-1000s will require more voltage; /archives//html/Amps/2016-09/msg00021.html (10,455 bytes)
6. [Amps] What Do you think? (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Sun, 11 Sep 2016 06:38:34 -0700; Something is wrong with the numbers. 3500 V at 500 mA is 1750 watts DC input. If you were measuring 1500 watts RF output, that would be an efficiency of about 86%, which is impossible with a class AB; /archives//html/Amps/2016-09/msg00030.html (8,884 bytes)
7. Re: [Amps] What Do you think? (score: 1): Author: Clark Turner <Clark@ClarkTurnerTuning.com>; Date: Wed, 14 Sep 2016 10:57:07 -0700; It might have 7KV on the plate. I have seen amps where the builder used HALF scale on the HV meter as he did not have a meter scaled properly OR did not want the FCC to know. My last amp was that way; /archives//html/Amps/2016-09/msg00049.html (10,265 bytes)

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