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References: [ +from:ka1xo@juno.com: 421 ]

Total 421 documents matching your query.

281. Re: [Amps] 240VAC Neon Indicator/Lamp (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Mon, 2 Jan 2006 14:05:20 -0500
Dear Jason, Most neon lamps require some sort of series resistor to limit the current after ignition. Fair Radio has some very neat pilot lamps you add neon bulbs to and also add correct value series
/archives//html/Amps/2006-01/msg00094.html (7,516 bytes)

282. Re: [Amps] my little amp project of many hours..maybe 50% done (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Fri, 6 Jan 2006 09:36:06 -0500
Dear Chuck, If you remember, a year ago one of my 100K-ohm, 50 watt bleeder resistors failed, went to 29 ohms, somehow and the next 100K-ohm 50 watter opened up, and I ended up lifted right off the c
/archives//html/Amps/2006-01/msg00209.html (10,471 bytes)

283. [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Sun, 8 Jan 2006 10:36:30 -0500
Gents, Phil at Fair Radio just sent up a couple of 4" square matching meters for my latest project. They are Westinghouse Type QX-37's, one being the 0 - 5KV voltmeter and the other being the 0 - 2 a
/archives//html/Amps/2006-01/msg00251.html (6,934 bytes)

284. Re: [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Sun, 8 Jan 2006 11:42:51 -0500
Thank you for your replies. Yes, the meter will go in the negative return line to the power supply, and will have back to back 200 peak amp diodes plus disk caps. The "peace-of-mind" request was spec
/archives//html/Amps/2006-01/msg00254.html (7,430 bytes)

285. Re: [Amps] Westinghouse BC Ammeter QX-37 (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Mon, 9 Jan 2006 08:22:50 -0500
Dear Bill, The figure 3817.5 Watts is simply the Anode Supply consumption at full bore of 2545 Volts times 1.5 amperes. This is from a "black box" model where the entire amplifier is just seen as a 1
/archives//html/Amps/2006-01/msg00259.html (9,475 bytes)

286. [Amps] Clean -vs- Unclean (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Mon, 9 Jan 2006 10:26:56 -0500
This question concerns signal cleanliness. A recent thread talks about unclean signals from poor amplifier construction. As an aside, talking with one of the commercial manufacturers earlier, I was t
/archives//html/Amps/2006-01/msg00264.html (6,704 bytes)

287. [Amps] FS: Placeholder, 15KW (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Mon, 9 Jan 2006 13:33:43 -0500
The previous thread said a salesperson mentioned the discontinuing of a commercial radio because it didn't have enough of a spurious signal to chase away adjacent operators. Anybody interested in my
/archives//html/Amps/2006-01/msg00290.html (6,615 bytes)

288. Re: [Amps] DXpedition Amp Recommendation (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Wed, 18 Jan 2006 09:47:46 -0500
Dear Keith, Take an Alpha 77Sx if you can find one. If you're going to work a contest and the key is going to be down 24/7 then you need something that will hold up under fire. You can always adjust
/archives//html/Amps/2006-01/msg00444.html (7,541 bytes)

289. [Amps] The Forum (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Wed, 8 Feb 2006 11:56:18 -0500
In a world beset by idiots burning buildings and generally misbehaving it is comforting to know there is an international forum where respected individuals can compare notes and even debate with good
/archives//html/Amps/2006-02/msg00195.html (6,922 bytes)

290. Re: [Amps] QSK or not (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Wed, 22 Feb 2006 17:22:58 -0500
Trying to use QSK in an RTTY contest is a heavy choice because I never know if I should switch between Mark and Space, or Space and Mark. Mr. W. Huong 6L6GB On Wed, 22 Feb 2006 14:40:48 -0500 "Ron Sp
/archives//html/Amps/2006-02/msg00403.html (7,025 bytes)

291. [Amps] Filter capacitor values (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Thu, 23 Feb 2006 11:29:49 -0500
In my current project, a dual 3CPX800A7 triode multibander, the outboard power supply was a "must," because of the elevated capabilities of the finals and so I decided upon an anode transformer from
/archives//html/Amps/2006-02/msg00440.html (7,857 bytes)

292. Re: [Amps] Filter capacitor values (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Thu, 23 Feb 2006 14:28:46 -0500
Dear Gerald, If you have been following the threads on this reflector for a few years you will probably remember the story of the screw-up with PWD on my dual 3CPX1500A7 project where first, the wron
/archives//html/Amps/2006-02/msg00454.html (8,271 bytes)

293. Re: [Amps] Question abt YC-156/3CPX5000A7 (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Thu, 23 Feb 2006 17:23:55 -0500
Jim, Be careful! Clean the entire tube in hot sudsy water, then flush with hot water. Dry, and finish with a cleaning with rubbing alcohol. When done, re hipot and see what the current is. If it is s
/archives//html/Amps/2006-02/msg00471.html (7,987 bytes)

294. Re: [Amps] GS-35B Tubes Glow In The Dark (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Fri, 24 Feb 2006 13:51:38 -0500
Dear Tony, What do you think the results would be if you removed the tubes and very thoroughly cleaned them with hot water and soap first and a finish with isopropanol, all handled with new clean rub
/archives//html/Amps/2006-02/msg00511.html (7,961 bytes)

295. Re: [Amps] QSK (okay, not QSK...) (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Fri, 24 Feb 2006 14:01:04 -0500
Hi Steve, In my big amp I use an RJ-2, and in the little amp an RJ-1. Neither of these are cheap, and there's more to do than fidgeting around inside an amp, replacing vacuum relays. The original Alp
/archives//html/Amps/2006-02/msg00512.html (9,137 bytes)

296. [Amps] Int'l Radio Service Division (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Fri, 24 Feb 2006 19:44:35 -0500
Does anyone know if the Int'l Radio Service Division is still in business? I shipped my TS-450S/AT down to them in Fort Pierce, FL on 2/13/06. 772 - 489 - 6302; intlradio@juno.com www.qth.com/irsd/re
/archives//html/Amps/2006-02/msg00531.html (7,442 bytes)

297. Re: [Amps] RE : DIN stands for....? (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Mon, 27 Feb 2006 16:44:13 -0500
DIN is short for, "DIN, DIN S'ALLAH DIN!" _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-02/msg00645.html (6,149 bytes)

298. [Amps] INTL RADIO SERVICE DIV. (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Tue, 28 Feb 2006 13:40:37 -0500
Gentlemen, A reply was received today, just earlier. This is in response to more than 15 telephone messages, three separate faxes and seven e-mail messages starting on 13 February 2006: ~~~~~~~~~~~~~
/archives//html/Amps/2006-02/msg00673.html (6,793 bytes)

299. Re: [Amps] Intl Radio Service Div. (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Tue, 28 Feb 2006 17:21:49 -0500
I have been dialing the telephone number continuously from 1415 until right now at 1720 and all I get is a busy signal. I wonder if all those other hundreds of patrons are calling and calling as well
/archives//html/Amps/2006-02/msg00679.html (7,103 bytes)

300. [Amps] Fw: No Success (score: 1)
Author: HAROLD B MANDEL <ka1xo@juno.com>
Date: Wed, 1 Mar 2006 07:29:52 -0500
Hello, Ampers, Here is the message sent to IRSD. Yes, Carol, all of you warned me! Thanks to Jim, KR1S for going there! Yesterday, after not being able to get any response from International Radio Se
/archives//html/Amps/2006-03/msg00003.html (7,494 bytes)

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