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Total 7 documents matching your query.

1. [Amps] SOURCE FOR 3CX800'S (score: 1): Author: Steve Bookout <steve@nr4m.com>; Date: Tue, 14 Oct 2014 18:31:36 -0400; Hello all, Recently picked up an older Alpha and was thinking of making the conversion to a pair of 3cx800's from the 3 x 8874's which are in the amp. Any suggestions on a source for good 3cx800 pull; /archives//html/Amps/2014-10/msg00059.html (6,353 bytes)
2. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: Gary Schweitzer <kf7bs@comcast.net>; Date: Wed, 15 Oct 2014 08:28:44 -0700; Check this website. http://www.wa8wzg.net/forsale.htm -- Thanks, Gary Schweitzer Recently picked up an older Alpha and was thinking of making the conversion to a pair of 3cx800's from the 3 x 8874's; /archives//html/Amps/2014-10/msg00063.html (7,282 bytes)
3. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: Mike Tubby <mike@tubby.org>; Date: Wed, 15 Oct 2014 22:46:43 +0100; Steve, The 3CX800 is becoming a premium and "hard to get" tube... have you considered modifying the Alpha to use 4CX800 (GU-74B) tubes which are plentiful and cheaper? Regards Mike G8TIC Recently pic; /archives//html/Amps/2014-10/msg00064.html (7,363 bytes)
4. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Wed, 15 Oct 2014 18:22:53 -0400; Since when are they plentiful? Last I looked they were becoming extinct as Russian surplus ran out. If they are in current production that would be great but converting a triode amp to tetrodes can b; /archives//html/Amps/2014-10/msg00065.html (8,832 bytes)
5. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Thu, 16 Oct 2014 09:28:52 +0800; Or even http://www.rfconcepts.com/PRODUCTS/tubes?range=11%2C18%2C18 alek, VK6APK -- http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk6ap Family Businesses: Petkovic Air& Gas. petkovicag@bigpond.c; /archives//html/Amps/2014-10/msg00066.html (8,214 bytes)
6. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: Robert Dorchuck W6VY via Amps <amps@contesting.com>; Date: Wed, 15 Oct 2014 18:37:20 -0700; Alpha has 3CX800A7's for $400. That's not much more than 4CX800's. Bob W6VY Steve, The 3CX800 is becoming a premium and "hard to get" tube... have you considered modifying the Alpha to use 4CX800 (GU; /archives//html/Amps/2014-10/msg00067.html (9,061 bytes)
7. Re: [Amps] SOURCE FOR 3CX800'S (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Wed, 15 Oct 2014 21:50:42 -0400; What do they mean by low grid current? I would assume that for medical amps they require less drive and Ig for the same output as higher Ig tubes but at lower IMD. Im just surprised they dont quantif; /archives//html/Amps/2014-10/msg00068.html (9,604 bytes)

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