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1. [Amps] Eimac 3-1000z Tubes (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Wed, 09 Oct 2002 22:16:14 -0400 (Eastern Daylight Time); My BTI LK-2000 runs a 3-1000z. The date code on the tube puts the manufacture date at 1980. The tube is putting out 1500w on 20m with 125w of drive. Question: What is the life expectancy of a 3-1000z; /archives//html/Amps/2002-10/msg00089.html (6,998 bytes)
2. [Amps] Eimac 3-1000z Tubes (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Thu, 10 Oct 2002 00:33:11 -0400 (Eastern Daylight Time); Noll: I don't think I have the HD power supply. My BTI was built in 1966. Regardless, it looks like my three back-up 3-1000z will never be used. I picked up 3 spare full output tubes 3 for 300. total; /archives//html/Amps/2002-10/msg00092.html (8,757 bytes)
3. [Amps] the life expectancy of a 3-1000z? (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Thu, 10 Oct 2002 10:39:23 -0400 (Eastern Daylight Time); Ok.... now that we know these have a long life span. The follow-up question is why? Why do they outlive a 3-500z by years? (and out-perform) Ted/WA2MGB --Original Message-- What is the life expectanc; /archives//html/Amps/2002-10/msg00097.html (7,567 bytes)
4. [Amps] 4-1000A Output (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Wed, 16 Oct 2002 17:24:51 -0400 (Eastern Daylight Time); This should be an easy one... What isthe expected output be of 4-1000A run as a triode with 3000v on the plate (loaded) with 125w drive? Testing a freeby tube in my BTI.... Tnx Ted -- StripMime Repor; /archives//html/Amps/2002-10/msg00181.html (6,673 bytes)
5. [Amps] 4-1000A Output (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Wed, 16 Oct 2002 21:00:43 -0400 (Eastern Daylight Time); Terry: The freeby tube tests have shown an output of 900w (cw key down on 20m) According to your calculations of good tube should be putting out about 1170. At what point do you "retire" the tube? Th; /archives//html/Amps/2002-10/msg00187.html (8,519 bytes)
6. [Amps] Viking Thunderbolt (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Mon, 21 Oct 2002 07:38:41 -0400 (Eastern Daylight Time); I need to speak with someone very familiar with the Johnson Viking Thunderbolt. This restored amp is enroute to me, and reading the manual (which predates me) doesn't quite explain thing clear enough; /archives//html/Amps/2002-10/msg00229.html (6,766 bytes)
7. [Amps] BTI BANDSWITCH (score: 1): Author: wa2mgb@optonline.net (theodore anderson); Date: Mon, 23 Sep 2002 13:40:40 -0400 (Eastern Daylight Time); My old BTI 2000 bandswitch arcs when trying to load up on 80m. Looks like it is time for a replacement. Any ideas on what to use for a replacement bandswitch? Tnx -- StripMime Report -- processed MIM; /archives//html/Amps/2002-09/msg00207.html (6,694 bytes)

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