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1. [Amps] FS: Line Section for 7/8 inch Heliax (score: 1): Author: joey buttafucco <itz_da_police@yahoo.com>; Date: Sat, 9 Jun 2007 10:07:49 -0700 (PDT); I have for sale a Coaxial Dynamics Line Section, it is a single element for 7/8 inch Heliax hardline. Model number 88531, it has the electrical connector (does not come with "Slug/Element") It was pu; /archives//html/Amps/2007-06/msg00043.html (6,599 bytes)
2. [Amps] Basler Electric Transformer (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sun, 20 Jul 2008 08:29:15 -0700 (PDT); Greetings, I have a transformer labled "BE-9370". It was made by Basler Electric, it has a split 220 volt primary and a high voltage secondary. The core dimensions are, L: 7.0 in., W: 7.0 in., D; /archives//html/Amps/2008-07/msg00171.html (7,434 bytes)
3. Re: [Amps] Basler Electric Transformer (Correction) (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sun, 20 Jul 2008 08:45:14 -0700 (PDT); I transposed the data on the core and winding dimensions: These are the correct numbers The WINDINGS dimensions are, L: 7.0 in., W: 7.0 in., D: 5.0 in. The CORE dimensions are, L: 9.5 in., W: 4; /archives//html/Amps/2008-07/msg00172.html (7,857 bytes)
4. Re: [Amps] Basler Electric Transformer (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sun, 20 Jul 2008 09:37:28 -0700 (PDT); Thanks Gary, I have already shot them an email, I hope they get to it soon. I am looking at my Radio Amateur's Handbook for the year 1977; they have a formula for estimating the wattage capacity fo; /archives//html/Amps/2008-07/msg00174.html (8,818 bytes)
5. Re: [Amps] Re Choke Formers.."Circlips" (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sun, 20 Jul 2008 20:21:48 -0700 (PDT); You are talking about "Jesus Rings". The tool (depending on whether it's a compression type or, an expansion type) is bent at the tip and shaped to fit the holes in the retaining ring. If that r; /archives//html/Amps/2008-07/msg00178.html (7,674 bytes)
6. Re: [Amps] Drake W4 Wattmeter Question (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Mon, 22 Dec 2008 10:59:53 -0800 (PST); The "What-meter" question". I am going to going to give you what is IMHO the answer to your question: Why the meter reading are different with frequency? However, before I answer the question,; /archives//html/Amps/2008-12/msg00287.html (10,826 bytes)
7. Re: [Amps] L-4B Issue (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Tue, 23 Dec 2008 08:22:00 -0800 (PST); Updates, did you find the cause? Mel KO0M I am rebuilding the power supply on a pal's L-4B and am stumped at a problem that has developed. Original symptom was no high voltage. Looked like the; /archives//html/Amps/2008-12/msg00306.html (9,150 bytes)
8. Re: [Amps] L-4B Issue (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 25 Dec 2008 14:09:36 -0800 (PST); Hey Ed, I have given it a little thought but, before I kinda had to make some presumptions; the .82 ohm resistor was open which usually signals a problem starting in the RF section with too much cu; /archives//html/Amps/2008-12/msg00331.html (12,462 bytes)
9. Re: [Amps] drake l-7 power supply (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 25 Dec 2008 14:25:55 -0800 (PST); It's a "Glitch / Fuse" resistor, it's in series with the B+ output, no metering circuitry surrounding it. Mel ko0m . If my memory is correct the 0.8 ohm or whatever is part of the metering circ; /archives//html/Amps/2008-12/msg00333.html (8,239 bytes)
10. Re: [Amps] Anyone around the King George, VA area (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Fri, 26 Dec 2008 10:41:49 -0800 (PST); The Hunter "Bandit" 2000C, nice simple amp. Hello WA4JKW, What is your amplifier doing that it should not be doing or, what isn't your amplifier doing that it should be doing? Mel (ko0m) HI a; /archives//html/Amps/2008-12/msg00340.html (8,248 bytes)
11. Re: [Amps] Anyone around the King George, VA area (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sat, 27 Dec 2008 07:14:12 -0800 (PST); Pat, The schematic that I have is showing two of the 8163 transmitting tubes (3-400z), looking at the roadmap, I like the way that they shunt the RF input to the tubes to ground when in receive.; /archives//html/Amps/2008-12/msg00346.html (13,233 bytes)
12. Re: [Amps] Anyone around the King George, VA area (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sat, 27 Dec 2008 10:42:47 -0800 (PST); Hello Cam, Before starting any electronic repair on vintage equipment, one should throughly inspect the shack for "Gremlims", it looks like you are the victim of one. If the pilot lamp comes on,; /archives//html/Amps/2008-12/msg00349.html (11,210 bytes)
13. Re: [Amps] help on a old transformer (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sun, 28 Dec 2008 17:58:25 -0800 (PST); Mike, I am not familiar with the exact model of transformer but, if you don't mind, I am going to take a "WAG"; the 2 red wires with the thick insulation (Red/Yel is center tap) are the high voltag; /archives//html/Amps/2008-12/msg00359.html (8,970 bytes)
14. Re: [Amps] switchable zener cathode bias (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Wed, 31 Dec 2008 14:58:09 -0800 (PST); Steve, I placed the two zener diodes in series and used a set of relay contacts to bypass one of the diodes to lower the zener voltage and make the tube run hotter (or cooler). 73 ko0m Consider; /archives//html/Amps/2008-12/msg00384.html (9,007 bytes)
15. [Amps] 572b Amplifier (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Mon, 23 Feb 2009 08:07:12 -0800 (PST); Greeting to all. I built an amplifier out of salvaged parts lying around the workshop; a diagram of it is here (http://s111.photobucket.com/albums/n150/Paws264/?action=view&current=4X572b.jpg). The; /archives//html/Amps/2009-02/msg00658.html (8,968 bytes)
16. Re: [Amps] TL-922 "Spits" (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 11 Jun 2009 14:30:18 -0700 (PDT); I would bet you a dollar to a donut that you have a capacitor in your HV section failing. Mel My TL-922A has a bad habit of very small arcing...I'll call it "spits". The strange thing, it happens o; /archives//html/Amps/2009-06/msg00052.html (7,348 bytes)
17. Re: [Amps] Gettering 572B (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 2 Jul 2009 12:13:00 -0700 (PDT); Could you isolate it to one tube by carefully removing one plate cap at a time (after the amp is dead and discharged; but you knew that) and firing it up in standby? Maybe one tube is drawing more c; /archives//html/Amps/2009-07/msg00058.html (8,015 bytes)
18. [Amps] What Is TheOptimum Bias For GS-35b Tubes? (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 24 Jun 2010 10:35:46 -0700 (PDT); I have a GS-35B Bias question. I constructed a 2 tube GS-35B amplifier; it has separate filament transformers and bias systems for each tube. My transformer runs 4200 VDC unloaded; I set the Zsac fo; /archives//html/Amps/2010-06/msg00203.html (7,786 bytes)
19. Re: [Amps] GS-35B Preparation (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Thu, 19 Aug 2010 11:06:29 -0700 (PDT); ......after you get the tube, you need a "burn-in fixture", what I used was a scraped-out ATX computer PS with a hole cut in it to mount the tube (you don't need the chimney at this stage. The GS-3; /archives//html/Amps/2010-08/msg00323.html (9,656 bytes)
20. Re: [Amps] GS35b (score: 1): Author: Mel <itz_da_police@yahoo.com>; Date: Sat, 13 Nov 2010 10:47:51 -0800 (PST); Allan I asked the same question 3 month ago on this same reflector: First response Second response More info I am running my tubes at 200 milliamps per tube which is about 20% -25% of my Ca; /archives//html/Amps/2010-11/msg00199.html (7,483 bytes)

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