Search String: Display: Description: Sort:

Results:

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

Total 421 documents matching your query.

341. [Amps] multi-tube amplifiers (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Fri, 26 May 2006 08:54:38 -0400
Gents, At some point, running more than one good tube can only achieve limited results, measured "bang-for-buck" or "steps-in-reinventing the wheel." Many years ago I built a transmitter that used 4
/archives//html/Amps/2006-05/msg00372.html (8,027 bytes)

342. Re: [Amps] who needs it (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Fri, 26 May 2006 11:13:14 -0400
An Open Letter: Dear Amps@Contesting.com administrator, The following message has just arrived through the reflector. Inasmuch as comment was made recently by perhaps you that a topic had run its cou
/archives//html/Amps/2006-05/msg00381.html (7,927 bytes)

343. Re: [Amps] Roller inductor grease? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Wed, 31 May 2006 14:47:01 -0400
Molybdenum disulphide grease. -orSilver-bearing grease. Do not use the copper-laden thread protector grease used in nuke plants on conduit. That stuff dries to a wax. Do not use No-Ox-Id "A" or "A"-S
/archives//html/Amps/2006-05/msg00569.html (7,471 bytes)

344. Re: [Amps] Series PC Power Supplies (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Thu, 1 Jun 2006 16:12:09 -0400
"Whoa, whoa, whoa!" (HIHI) (As Dan Ackroyd says in Ghostbusters). D.C. Power supplies may be paralleled if there are no problems with approaching the total limit of the combined ampacities. The inter
/archives//html/Amps/2006-06/msg00011.html (14,783 bytes)

345. [Amps] PSK-31 (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 11:37:20 -0400
Since the new 2 x 3CPX800A7 amplifier has proven not to go up in smoke while operating from the hotel room, and since the hotel lights only dim on voice peaks in high voltage I want to get active on
/archives//html/Amps/2006-06/msg00122.html (7,135 bytes)

346. Re: [Amps] emtron dx-1??? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 14:44:08 -0400
Looking at the pictures of the amplifier and knowing what goes on with some Dx-types you might be looking at an actual bargain. What with Mil-Surplus Russki HV doorknobs in the high-KVaR department a
/archives//html/Amps/2006-06/msg00136.html (8,174 bytes)

347. Re: [Amps] emtron dx-1??? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 16:23:57 -0400
Dear David, The coolest thing about Deerfield was that all the high-tech types from the Silicone-Valley around Boston, and all the nerds from the military bases would shlep up all their plunder. When
/archives//html/Amps/2006-06/msg00141.html (11,387 bytes)

348. Re: [Amps] emtron dx-1??? for a couple hundred bucks? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 16:31:49 -0400
The item has been removed by e-bay. Hal W4HBM Location is China?? With G1THJ call sign Plus, look at the strange categories it is listed under? Mike Chuck, Well, the feedback is very telling. Every '
/archives//html/Amps/2006-06/msg00142.html (11,593 bytes)

349. Re: [Amps] emtron dx-1??? for a couple hundred bucks? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 17:25:11 -0400
Just checking the Google for Emtron it's seen that their newest retail piece is the two-box DX-4 running a couple of GU-84b's in parallel. One of the websites say "$8500.00" retail. That's $1.70 a wa
/archives//html/Amps/2006-06/msg00146.html (8,978 bytes)

350. Re: [Amps] emtron dx-1??? for a couple hundred bucks? (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 5 Jun 2006 19:43:10 -0400
After some telephone calls I decided to look a bit closer at the auction: All the feedback comments were just question marks. All the purchased items under the seller's feedback area were question ma
/archives//html/Amps/2006-06/msg00149.html (11,011 bytes)

351. [Amps] Moderators and Administrators (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Tue, 6 Jun 2006 10:50:13 -0400
After all, somebody feeds the meter to all this gas, and if there's someone interested enough to comb through and weed out some of the QRM on their nickel, that's fine. Hey Louie, Howaaya? For our mo
/archives//html/Amps/2006-06/msg00160.html (10,408 bytes)

352. [Amps] Fraudulent Amp seller (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Thu, 8 Jun 2006 08:39:35 -0400
RE: The Emtron DX-1b auction [snip] Hello Harold, Thank you for taking the time to submit this information to eBay. We're concerned about violations on eBay and have investigated your report thorough
/archives//html/Amps/2006-06/msg00218.html (6,642 bytes)

353. Re: [Amps] 4-1000A Input matching (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Thu, 8 Jun 2006 09:40:48 -0400
Dear Ken, Since you plan on some renovation you might want to look at a bunch of items. Will you be running the amp with a Grounded Grid or will you run Grid-Driven? If you decide on Grid-Driven, the
/archives//html/Amps/2006-06/msg00222.html (8,609 bytes)

354. Re: [Amps] New Dummy Load (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Fri, 16 Jun 2006 08:55:57 -0400
The product spec sheet says "6KW Burst." The bargraph on the front panel has a 2.5KW maximum. $2K? Palstar's big dummy load is calibrated to 5KW. Hal W4HBM Just noticed this on Alpha's web page for t
/archives//html/Amps/2006-06/msg00304.html (7,186 bytes)

355. Re: [Amps] Deja vu all over again (score: 1)
Author: "Harold B. Mandel" <ka1xo@juno.com>
Date: Fri, 30 Jun 2006 08:43:08 -0400
Howza 'bout Parasites@Amps.Com? There would only be one thread. We could chew it and chew it. Hal W4HBM On Thu, 29 Jun 2006 18:57:58 +0200 Jan Erik Holm <sm2ekm@telia.com> writes: ___________________
/archives//html/Amps/2006-06/msg00657.html (8,080 bytes)

356. Re: [Amps] Ideal bandswitch brand for 3 kW out am? (score: 1)
Author: "Harold B. Mandel" <ka1xo@juno.com>
Date: Fri, 30 Jun 2006 08:49:21 -0400
RADIOSWITCH 80 SERIES, Frank. Hal W4HBM On Thu, 29 Jun 2006 19:20:48 +0200 Frank Goenninger <frgo@mac.com> writes: _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2006-06/msg00658.html (8,188 bytes)

357. Re: [Amps] Deja vu all over again (score: 1)
Author: "Harold B. Mandel" <ka1xo@juno.com>
Date: Sat, 1 Jul 2006 08:25:57 -0400
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A good aid to digestion is G. W. Fyler's article: ''Parasites in Transmitters'', Institute of Radio Engineers Journal. Sept. 1935. Hasn't anybody re-written anything on
/archives//html/Amps/2006-07/msg00008.html (6,646 bytes)

358. Re: [Amps] 3CX1200D7 on eBay (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Mon, 10 Jul 2006 10:52:37 -0400
Econco tried to rebuild several of these and failed. Stick a lampshade on it, maybe. Hal W4HBM There is a 3CX1200D7 for sale on eBay that is finishing in an hour or so. The bidding is up to $138 and
/archives//html/Amps/2006-07/msg00307.html (7,220 bytes)

359. Re: [Amps] Silly question - interim report on results. (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Tue, 11 Jul 2006 08:50:42 -0400
Talking about paper amplifiers........ One phenomenon I've observed is when the paper amp turns into metal and other bits, and how when the bits go into a box with a cover, the bits behave differentl
/archives//html/Amps/2006-07/msg00328.html (8,660 bytes)

360. Re: [Amps] Silly question - interim report on results. (score: 1)
Author: "Harold Mandel" <ka1xo@juno.com>
Date: Tue, 11 Jul 2006 09:52:47 -0400
Dear Tom, Thank you for your reply. What I ended up doing in the worst offender amp was to completely rewire the choke, twice, and then changed the cold end's bypass capacitance to another value. The
/archives//html/Amps/2006-07/msg00330.html (8,144 bytes)

Current List: 341 - 360
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu