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Total 14 documents matching your query.

1. [Amps] Heathkit SB-221 input network help, the saga continues.... (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Sat, 2 Nov 2002 00:38:55 -0700; I'm back again with more info about this project. I decided to examine the input network for the SB-200 and compare the parts and their values to the ones in the SB-221. VERY interesting! All of the; /archives//html/Amps/2002-11/msg00007.html (11,785 bytes)
2. [Amps] SB-221 input network should have read SB-201/SB-200 input network....etc (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Sat, 2 Nov 2002 09:17:32 -0700; Guess I should have waited until morning to type my request. Didn't remember what I was working on this time! ;>) To help reduce the confusion of my original post here is a bit of clarification. The; /archives//html/Amps/2002-11/msg00009.html (8,792 bytes)
3. [Amps] RE: Troubleshooting a SB-200 (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Tue, 5 Nov 2002 00:00:57 -0700; Hello Steve, Having just spent/and am continuing to spend time working on the newer brother to your amp, a SB-201, here are my thoughts. Your key up to key down high voltage seems a bit low especiall; /archives//html/Amps/2002-11/msg00034.html (10,572 bytes)
4. [Amps] W7IUV amp picture page?? (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Mon, 28 Oct 2002 10:15:54 -0700; Anyone know what happened to the amp picture page that W7IUV had ?? Get a 404 page not found on the address I have. Any one got one that still works?? Mike Baker K7DD k7ddmjb@qwest.net; /archives//html/Amps/2002-10/msg00294.html (6,411 bytes)
5. [Amps] SB201 input network help. (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Tue, 29 Oct 2002 02:54:50 -0700; Hello again. Well, this time I started a project that is getting more complex as time progresses. I offered to service and update a friends Heath SB201 amp. Put in the Harbaugh soft start, new fan, n; /archives//html/Amps/2002-10/msg00299.html (7,930 bytes)
6. [Amps] Dentron 10-160L? (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Wed, 24 Apr 2002 08:02:26 -0700; Hello Chuck, Yep, got one of those and had it for about 3 years now. (with 572B's) Runs 1500VDC on the plates so you can use 811A's if you want. No WARC bands but does have 160Meters. Needs a keying; /archives//html/Amps/2002-04/msg00539.html (8,733 bytes)
7. [Amps] TenTec 425 Titan Power Transformer Pin out needed... (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Sat, 9 Mar 2002 17:11:39 -0700; Hello to all, I have a NEW power transformer for a TenTec Titan 425 Linear amp. The price was right. Now I need the pin out/diagram so I know what I have acquired. Anyone have a schematic/wire diagra; /archives//html/Amps/2002-03/msg00205.html (6,833 bytes)
8. [Amps] Terminology Question (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Thu, 21 Mar 2002 09:44:24 -0700; WOOOOWWWWW! Someone give me a towel! Just to keep the drool off my keyboard! Someday when I grow up and have lots of money I'm gonna have me one of those! (Ref: 1924 Grebe Synchrophase below.) OH YEA; /archives//html/Amps/2002-03/msg00496.html (11,501 bytes)
9. [AMPS] HA-10 Conversion to 572B Tubes (score: 1): Author: k7ddmjb@qwest.net (Mike Baker); Date: Fri, 22 Feb 2002 08:57:23 -0700; Hello Bill, I have a Warrior that I refurbished and offer a few comments. There is a reason the power transformer went south. They were too small as was the choke. Removing both along with the 2.5V f; /archives//html/Amps/2002-02/msg00227.html (12,702 bytes)
10. [Amps] Off Subject Urgent Need for DC Battery Booster. (score: 1): Author: "Michael Baker" <k7ddmjb@qwest.net>; Date: Wed, 14 Jun 2006 23:26:56 -0700; Hi Gang, I know this is a bit off subject but I have an urgent need for a Battery Booster. This device boosts a DC input from about 10V to 13.8 and maintains the output at that higher voltage from 10; /archives//html/Amps/2006-06/msg00290.html (7,201 bytes)
11. [Amps] Battery Booster Found! (score: 1): Author: "Michael Baker" <k7ddmjb@qwest.net>; Date: Thu, 15 Jun 2006 19:21:22 -0700; To all that responded, Thanks. One fellow from Florida had one almost unused he has on the way to me at a reasonable price. Now to find a cheep source of Trojan Batteries in the Phoenix Area. ;>) Onc; /archives//html/Amps/2006-06/msg00301.html (6,588 bytes)
12. Re: [Amps] Heathkit HA10 linear (score: 1): Author: "Michael Baker" <k7ddmjb@qwest.net>; Date: Fri, 4 Aug 2006 21:42:37 -0700; Hummmm. Not likely with the original 811A configuration but with 4 572B'B and running about 2500VDC it will run 2KW INPUT and about 1200 output. 3KV is pushing it a bunch. I would say your friend is; /archives//html/Amps/2006-08/msg00168.html (7,930 bytes)
13. Re: [Amps] amp tubes (score: 1): Author: "Mike Baker" <k7ddmjb@qwest.net>; Date: Fri, 8 Sep 2006 22:46:04 -0700; Hi Carl, Just a few thoughts came to mind. I would asume the Chinese might have used the Russian (AKA Sevetlana) design of 572B as their model and they had more gain than other mfgrs. When Sevetlana; /archives//html/Amps/2006-09/msg00153.html (9,810 bytes)
14. Re: [Amps] Drake L7 info Please (score: 1): Author: "Michael Baker" <k7ddmjb@qwest.net>; Date: Fri, 10 Apr 2009 16:21:20 -0700; Take the stop out of the band switch that keeps it from switching to the (unmarked)10 meter position. Mine worked fine after that fix. Simple. I don't know if I miss the L7 or the TR7A and accessorie; /archives//html/Amps/2009-04/msg00125.html (8,492 bytes)

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