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1. [Amps] Drake L7 PS questions update (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Mon, 1 Jul 2002 18:03:56 EDT; Greeting to the list Having obtained the parts to rebuild the smoked PS from the L7, and located some printed circuit boards which will work with some slight modifications, I wonder if there is any l; /archives//html/Amps/2002-07/msg00019.html (7,365 bytes)
2. [Amps] Drake L7 PS questions (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Mon, 1 Jul 2002 23:19:47 EDT; More specifically, re: the capacitor question on the L7...... the original supply used 4x 200mfd at 450 volts on each leg of the doubler. This was a capacitance per leg of 50 mfd, at 1800 volts. MY c; /archives//html/Amps/2002-07/msg00038.html (6,923 bytes)
3. [Amps] Drake L7 PS questions-correction (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Mon, 1 Jul 2002 23:42:33 EDT; Correction to sloppy math, in the first case above, I gain 35 percent additional capacitance, not the erroneously stated 25 per cent. Randy K8BUX; /archives//html/Amps/2002-07/msg00039.html (6,302 bytes)
4. [Amps] L7 PS continued.. (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Tue, 2 Jul 2002 18:10:45 EDT; Well, I did a swell job of getting the PS circuit boards all put together, and mounted, double checked everything, fired it up on 220ac, and the plate voltage showed at about 1700 or so. Looked at it; /archives//html/Amps/2002-07/msg00049.html (7,146 bytes)
5. [Amps] L7 PS (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Wed, 3 Jul 2002 07:45:45 EDT; The triple checking my work answered the question of what happened to the caps. In a display of dumbassedness, while jumpering some circuit boards I was using, I did it in a way that left only two ca; /archives//html/Amps/2002-07/msg00053.html (6,522 bytes)
6. [Amps] Drake L7 issues (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Tue, 11 Jun 2002 15:36:35 EDT; Just received a "new" L-7, which seems to have the following issue(s). 1. The load capacitor initially made a scraping noise, and was clearly misaligned physically as it would only mesh i one directi; /archives//html/Amps/2002-06/msg00070.html (8,160 bytes)
7. [Amps] Drake L7 issues- update (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Wed, 12 Jun 2002 11:06:28 EDT; Thanks for the suggestions to date. I have made a little more progress Using a good light source, the existing caps look fairly bad. The one with the lead cut loose measures a dead short on the VOM,; /archives//html/Amps/2002-06/msg00079.html (7,735 bytes)
8. [Amps] HV Circuit Board Material? (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Fri, 14 Jun 2002 14:02:10 EDT; Greetings to the list Since I am going to be rebuilding my L7 Power supply, I am thinking about trying my hand at a simply circuit board fabrication for the two boards that mount on each side of the; /archives//html/Amps/2002-06/msg00095.html (6,898 bytes)
9. [Amps] SB 220/221 Input cap specs. (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Mon, 13 May 2002 12:24:25 EDT; Greeting to the list Does anyone have an idea for what voltage rating and types of caps to order(or avoid ordering) from Mouser to rebuild my sb221 input section? ( the original owner never installed; /archives//html/Amps/2002-05/msg00173.html (7,085 bytes)
10. [Amps] Source for 220V cords (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Thu, 7 Mar 2002 14:45:05 EST; Hello to group How's this for a mundane question? Anyone have any suggestions for best source for a 220 volt cord for an SB 220 with a plug already wired on it. I know I could buy a wire and plug and; /archives//html/Amps/2002-03/msg00133.html (7,598 bytes)
11. [Amps] Source for 220V cords --Thanks (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Fri, 8 Mar 2002 09:23:19 EST; Wow, Thanks to all the responders. Actually, I haven't installed the 220 circuit yet, but I will look into how it should be wired relative to having all four wires in to the box. Also hadn't thought; /archives//html/Amps/2002-03/msg00159.html (6,975 bytes)
12. [Amps] Terminology Question (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Wed, 20 Mar 2002 20:51:03 EST; What is the origin of the B+ term in amp/radio/power supply terminology. I understand it to be the high voltage supply, but I do not know the origin of the designation and that has finally bothered m; /archives//html/Amps/2002-03/msg00445.html (7,497 bytes)
13. [Amps] Re Terminology Question------Thanks to all (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Thu, 21 Mar 2002 08:07:42 EST; WOW!!!!! Not only did I have no idea that the term B+ originated in battery radios, but I am surprised that so many other people did. A radio of that type must have been extremely expensive back when; /archives//html/Amps/2002-03/msg00458.html (6,803 bytes)
14. [AMPS] SB221 Tuned input Question (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Mon, 12 Nov 2001 11:18:53 EST; Greetings Allow me to display [some of] my ignorance here. Is the tuned input circuit in these amplifiers for the benefit of the driving transceiver to allow it to see the proper impedance, or is it; /archives//html/Amps/2001-11/msg00196.html (7,410 bytes)
15. [AMPS] TL-922 (score: 1): Author: RMead100@aol.com (RMead100@aol.com); Date: Thu, 7 Sep 2000 23:12:26 EDT; I know little about amps, but have had some interest in following this thread I have however, been involved in various financial ventures, and find the introduction and rebuttal of the possibility of; /archives//html/Amps/2000-09/msg00260.html (8,540 bytes)

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