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1. Re: [Amps] SB-220 HV meter on zero (score: 1): Author: "Mike Manship" <w9oj@indy.rr.com>; Date: Wed, 2 Nov 2016 17:02:03 -0400; The SB-220 has a built-in shorting stick. Mike W9OJ Make a shorting stick -- a dry wood or fiberglass stick about 16" long with a hook at one end, and a wire from the hook going to a good-quality all; /archives//html/Amps/2016-11/msg00020.html (9,076 bytes)
2. Re: [Amps] Failure of a pair of FU728F (score: 1): Author: w9oj@indy.rr.com; Date: Sun, 15 Sep 2019 19:24:10 +0000; A friend of mine ruined the finals in his OM4000 by running the amp at low power. Array solutions told him the amp is designed to be run full power or very close to it. 73 de Mike W9OJ and to than 30; /archives//html/Amps/2019-09/msg00025.html (8,469 bytes)
3. Re: [Amps] Econco Tube rebuilding (score: 1): Author: w9oj@indy.rr.com; Date: Wed, 29 Jan 2020 16:01:21 +0000; You could change the filament transformer to one that delivers 6.3V at 25A and use a 3CX1200D7 instead. W8JI sells the tubes at his website. It uses the same socket and pinout. https://www.ctrenginee; /archives//html/Amps/2020-01/msg00051.html (10,906 bytes)
4. Re: [Amps] Western Electric (score: 1): Author: <w9oj@indy.rr.com>; Date: Tue, 22 Mar 2022 19:36:09 -0400; 3-1000Z would be nice! 73 de Mike W9OJ Thanks Gary I wrote in comment section 3-500z RF tube would be excellent consideration. My guess they are doing glass type tubes 73 Robert On Tue, Mar 22, 2022,; /archives//html/Amps/2022-03/msg00035.html (7,970 bytes)

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