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61. Re: [Amps] Alpha (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Thu, 5 Oct 2017 07:49:38 -0400; At some point in the future, 87A prices may reach a point where it's worthwhile to own a donor unit, especially as 3CX800A7 tubes become more expensive to purchase. I see the most problematic replace; /archives//html/Amps/2017-10/msg00054.html (11,501 bytes)
62. Re: [Amps] Alpha (score: 1): Author: "Fern Rivard" <crc@cyberlink.ca>; Date: Thu, 5 Oct 2017 08:12:33 -0600; Do they use the same pin diodes in the alpha 86 amplifier? Fern VE7GZ At some point in the future, 87A prices may reach a point where it's worthwhile to own a donor unit, especially as 3CX800A7 tubes; /archives//html/Amps/2017-10/msg00055.html (12,752 bytes)
63. Re: [Amps] Alpha (score: 1): Author: Sugiyama <ji3kdh@2333.net>; Date: Fri, 06 Oct 2017 01:15:36 +0900; What a nice info you gave, Paul! Just completed my order now. Thanks! :) -- 73, Sugi JI3KDH _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesti; /archives//html/Amps/2017-10/msg00058.html (8,083 bytes)
64. Re: [Amps] Alpha (score: 1): Author: "Dick Green WC1M" <wc1m73@gmail.com>; Date: Thu, 5 Oct 2017 14:20:24 -0400; I laid in a small supply of PIN diodes from Richardson after Paul posted earlier about the availability. Thanks! The PIN diodes got a bad rap when they failed in early production models, but my origi; /archives//html/Amps/2017-10/msg00059.html (15,801 bytes)
65. Re: [Amps] Alpha (score: 1): Author: "Jerry" <jsternmd@att.net>; Date: Thu, 5 Oct 2017 16:46:00 -0400; There was a site up for a few years that said all of the amp specific data resided in 64 hex bytes beginning at B600. He recommended using the ZOC Terminal from http://www.emtec.com and had a nice si; /archives//html/Amps/2017-10/msg00061.html (17,637 bytes)
66. Re: [Amps] Alpha (score: 1): Author: Tom Osborne <w7why1@gmail.com>; Date: Thu, 5 Oct 2017 16:05:59 -0700; Where are the codes in my SB-200?? :-) 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2017-10/msg00065.html (9,452 bytes)
67. Re: [Amps] Alpha (score: 1): Author: "Dick Green WC1M" <wc1m73@gmail.com>; Date: Thu, 5 Oct 2017 19:57:45 -0400; This makes sense. My recollection is that two ICs had to be changed to do the AlphaMAX upgrade, and those must the U7 PROM and the U9 PAL. Since my amp was working except for RS232, those chips were; /archives//html/Amps/2017-10/msg00066.html (19,841 bytes)

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