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61. Re: [Amps] ALPHAs and momentary power outages (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 18 Jul 2007 13:30:07 -0400; I would think that the Alpha microcessor is pretty basic and looking for simple analog inputs. Much like an automotive processor. I had a built up LT1/4L60E Corvette combo in a 38 Chevy coupe and the; /archives//html/Amps/2007-07/msg00328.html (12,045 bytes)
62. Re: [Amps] ALPHAs and momentary power outages (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 18 Jul 2007 15:00:19 -0400; Well, enterprising hackers have figured out how to improve engine performance and defeat CATV cable boxes. All you need is to find an enterprising teenager to tackle the Alpha and come up with a virt; /archives//html/Amps/2007-07/msg00331.html (14,863 bytes)
63. [Amps] Correct Johnson socket for 8877? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 18 Jul 2007 17:54:28 -0400; I see several part # for what appears to be similar 7 pin sockets. Which one(s) are correct? I know the 829B, 832A, 5894 and similar dual tetrodes used the same same base. 122-101 122-248 122-247 Car; /archives//html/Amps/2007-07/msg00334.html (6,320 bytes)
64. Re: [Amps] Dummy Load DA-174/GRM-10 (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 18 Jul 2007 19:07:18 -0400; It sounds as if it may be a reactive dummy load for performance testing the specs of a TX or small amp. But is there any switching of jumper options? The resistors should be non inductive, maybe Dale; /archives//html/Amps/2007-07/msg00336.html (9,981 bytes)
65. Re: [Amps] SB-200 DATA (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 19 Jul 2007 09:24:38 -0400; If you dont need 160 the SB-200 is an economical choice. They work fine on 12/17M also. It is not an amp for RTTY or digital modes. The price stays low since over 10,000 were sold. I buy around 50 a; /archives//html/Amps/2007-07/msg00343.html (9,915 bytes)
66. Re: [Amps] SB-200 DATA (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 19 Jul 2007 13:25:02 -0400; Im quite aware of the 80's problem. I was reselling Eimacs from CeCo, Richardson and 1 or 2 others before Richardson got it all. I even continued with Richardson for a few more years until I sold off; /archives//html/Amps/2007-07/msg00346.html (11,461 bytes)
67. Re: [Amps] SB-200 DATA (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 19 Jul 2007 17:19:45 -0400; Ive been providing Chinese tubes in several of the SB-200 and SB-220 6M conversions plus other brands plus repairs to HF amps. No reported problems in the past 5 years or so. That doesnt mean they wi; /archives//html/Amps/2007-07/msg00349.html (15,217 bytes)
68. Re: [Amps] Drake amplifier (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Mon, 23 Jul 2007 14:55:45 -0400; 1KW input on CW, 2KW PEP on SSB was the FCC reg back then. For that reason many amps of that era had a CW/SSB plate voltage switch. Many left it in the SSB position irregardless of the mode (; No sen; /archives//html/Amps/2007-07/msg00374.html (9,887 bytes)
69. Re: [Amps] Drake amplifier (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Mon, 23 Jul 2007 17:22:43 -0400; Your slight technicality is a later revision to the regs, the FCC was having a problem defining the power so that advertising wording and tuning instructions didnt break rules. In 1963 1000W DC input; /archives//html/Amps/2007-07/msg00379.html (14,956 bytes)
70. Re: [Amps] AL-80B transformer tap (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Mon, 23 Jul 2007 17:26:55 -0400; Set it at 245 and dont beat the subject to death. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2007-07/msg00382.html (9,613 bytes)
71. Re: [Amps] Drake amplifier (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Mon, 23 Jul 2007 18:06:02 -0400; Lou, it will be a miracle if a tube survives a flashover without the grid "fuse" or a healthy surge resistor. Carl KM1H _______________________________________________ Amps mailing list Amps@contesti; /archives//html/Amps/2007-07/msg00384.html (9,224 bytes)
72. Re: [Amps] Grounding the grids (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 10:45:23 -0400; Interesting story thats been repeated many times over the years on the reflector. Sort of a continuation of the Bill Orr obsession with an idea. However Ive never seen a simultaneous blown choke and; /archives//html/Amps/2007-07/msg00402.html (16,146 bytes)
73. Re: [Amps] Grounding the grids (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 14:13:50 -0400; The same way you know its an arc. Neither of us was watching when it happened. In my cases there was absolutely no other damage and the case was split at the seam, the weak link. I also have replace; /archives//html/Amps/2007-07/msg00406.html (15,645 bytes)
74. Re: [Amps] higher v.?? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 16:19:27 -0400; I switched to the compacts in a few places about 5 years ago when imports became available at decent prices. I use them in places where I havent been able to train my wife or remaining at home son to; /archives//html/Amps/2007-07/msg00408.html (8,138 bytes)
75. Re: [Amps] Grounding the grids (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 18:28:39 -0400; The same reason Heath used 33 Ohms on the SB-200/201. They are an attempt to stabilize and also act as current limiters in case of nasty things trying to happen. They often blow open during a run awa; /archives//html/Amps/2007-07/msg00412.html (8,244 bytes)
76. Re: [Amps] higher v.?? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 19:51:32 -0400; When I get my foot into my 68 Impala SS-396 the savings is gone for the next 10 years. I just got tired of burnt out bulbs. Carl KM1H _______________________________________________ Amps mailing list; /archives//html/Amps/2007-07/msg00413.html (8,325 bytes)
77. Re: [Amps] amps? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 24 Jul 2007 22:30:27 -0400; Arent RF Parts versions just selected and private labeled from the same factory as the others? Of course they con the unknowing into buying "matched pairs" at a premium. Matched my a**. Carl KM1H Car; /archives//html/Amps/2007-07/msg00421.html (8,979 bytes)
78. Re: [Amps] higher v.?? (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 25 Jul 2007 10:19:57 -0400; I'm sure that there are several versions made in several plants. Some good, some bad. The ones I have take about 30 seconds to get full brilliance and are somewhat close to the color of incadescents; /archives//html/Amps/2007-07/msg00427.html (10,865 bytes)
79. Re: [Amps] Gassy Tubes/Technology Museum looking for artifacts (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 26 Jul 2007 09:33:47 -0400; Beside filament voltage and base configuration? I do know of one other that was very important to amp builders of the era. Want to take a shot at it? Carl KM1H _______________________________________; /archives//html/Amps/2007-07/msg00432.html (9,603 bytes)
80. Re: [Amps] Gassy Tubes/Technology Museum looking for artifacts (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Thu, 26 Jul 2007 10:26:00 -0400; Some of us are showing our age! Next we will have the real OT's telling us how they debased 30's tubes to get on 5 M and above. Carl KM1H _______________________________________________ Amps mailing; /archives//html/Amps/2007-07/msg00436.html (11,753 bytes)

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