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321. Re: [Amps] 4CX250 MSDS SHEET (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Tue, 11 Dec 2007 09:24:33 -0500
It is not that deadly substance that gets some people all upset! If the tubes are any good send them this way. Carl KM1H _______________________________________________ Amps mailing list Amps@contest
/archives//html/Amps/2007-12/msg00131.html (7,811 bytes)

322. Re: [Amps] 4CX250 MSDS SHEET (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 12 Dec 2007 10:03:52 -0500
No No No. The ceramic is an INSULATOR., berillium oxide is a heat CONDUCTOR. Imagine the results if the anode heat was placed on the screen ring. RCA used pink ceramic in the 60's on hi power tetrode
/archives//html/Amps/2007-12/msg00144.html (10,380 bytes)

323. Re: [Amps] (no subject) (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 21 Dec 2007 09:45:36 -0500
RF Parts charges you more for the honor of having their name on the glass. Otherwise there is no difference in the Chinese versions. Carl KM1H _______________________________________________ Amps mai
/archives//html/Amps/2007-12/msg00185.html (7,068 bytes)

324. Re: [Amps] Spilled my beads (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 21 Dec 2007 21:36:59 -0500
A basic LCR meter and a few turns of wire plus the Fairite catalog should get them all back in their nests again. If thats too much work send it up here, I got some spare time for a freebie kit! Carl
/archives//html/Amps/2007-12/msg00193.html (7,452 bytes)

325. Re: [Amps] What is the best way to run a pair of 4-1000 tubesgrounded Grid or another way? For 10 t (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 22 Dec 2007 16:49:49 -0500
Hams were running dual 4-1000A's long before CBers and there are plenty of those and bigger amps on the air today. Some simply want to always be the loudest and first in a pileup and dont care about
/archives//html/Amps/2007-12/msg00208.html (10,287 bytes)

326. Re: [Amps] (no subject) (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 23 Dec 2007 10:17:12 -0500
Very true and mentioned here several times in the past. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/am
/archives//html/Amps/2007-12/msg00214.html (7,681 bytes)

327. Re: [Amps] What is the best way to run a pair of 4-1000 tubes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 23 Dec 2007 22:00:11 -0500
The 4X1 was used in a huge number of 5KW AM BC transmitters; 2 in the RF deck and 2 as modulators. When the RF tubes got soft they were used in the modulators. By the time a ham got them they were fa
/archives//html/Amps/2007-12/msg00224.html (14,936 bytes)

328. Re: [Amps] High voltage rectifiers for Henry 3K (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 24 Dec 2007 08:34:46 -0500
Since when are resistors and caps used any longer in diode strings? Thats ancient history. Buy some 1N5408's for under 20 cents each and be done with it. Carl KM1H ___________________________________
/archives//html/Amps/2007-12/msg00232.html (9,872 bytes)

329. Re: [Amps] Amps] High voltage rectifiers for Henry 3K (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 24 Dec 2007 20:09:30 -0500
A Chebby in a Ford is a sacrilege! My 26T coupe has a supercharged Ford V8 flathead and its also won many awards. Ive nothing against Chebbies, my 68 SS-396 attests to that. I even have a hemi 56 Dod
/archives//html/Amps/2007-12/msg00241.html (10,467 bytes)

330. Re: [Amps] High voltage rectifiers for Henry 3K (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 24 Dec 2007 22:47:55 -0500
Thats high according to 2007 auction results. OTOH a Deuce roadster street rod broke $250K this year. Also several 60-70's muscle cars are bringing more than any stock Deuce. Carl KM1H ______________
/archives//html/Amps/2007-12/msg00244.html (8,821 bytes)

331. Re: [Amps] High voltage (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 26 Dec 2007 12:31:32 -0500
Interesting but not applicable to a ham amp. Antique car parts come closer to the amp. With them they have to appear and function as original. It doesnt matter if the replacement part is done from a
/archives//html/Amps/2007-12/msg00257.html (9,501 bytes)

332. [Amps] Clipperton L input board (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 30 Dec 2007 09:12:01 -0500
Does anyone have the component data for 10M? Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2007-12/msg00270.html (6,686 bytes)

333. Re: [Amps] Alpha 87A Tubes 3CX800A7 and the 3CX P 800A7 ? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 30 Dec 2007 19:20:12 -0500
All varieties can be considered the same tube for ham use. Also any Eimac tube beginning with a Y is automatically 40-100% more expensive than its regular production brethren. Carl KM1H _____________
/archives//html/Amps/2007-12/msg00275.html (8,432 bytes)

334. Re: [Amps] 2x813 or 2x3-500zg ? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 31 Dec 2007 08:36:44 -0500
The 813 is almost a 70 year old design yet it is still one of the best tubes ever made. Brand new US military surplus ones are on Ebay on a regular basis and at very low prices. No matching is requir
/archives//html/Amps/2007-12/msg00283.html (8,642 bytes)

335. Re: [Amps] Alpha 87A Tubes 3CX800A7 and the 3CX P 800A7 (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 31 Dec 2007 14:02:06 -0500
Eimac specs say 60 ma per tube absolute max. I see no meaningful increase over 20-25 ma. What is the reading into a known 50 Ohm RESISTIVE load? Id be concerned about the Alpha itself if it allows su
/archives//html/Amps/2007-12/msg00292.html (34,815 bytes)

336. Re: [Amps] HV Supplies and Diodes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 2 Jan 2008 17:47:15 -0500
I find it a bit strange and somewhat comical that the only ones that appear to champion resistors and capacitors across any series string of 1N540x diodes is the amateur community. Not one manufactur
/archives//html/Amps/2008-01/msg00019.html (9,527 bytes)

337. Re: [Amps] HV Supplies and Diodes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 3 Jan 2008 18:05:42 -0500
The application notes for the 1N540x series that I mentioned yesterday all made mention of derating based upon lead length and mounting method. A 3X or twice the 1.414 has always been considered good
/archives//html/Amps/2008-01/msg00046.html (19,009 bytes)

338. Re: [Amps] questions about hi pot tester (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 6 Jan 2008 10:27:12 -0500
For TX tube testing Ive built a few using neon sign transformers and will get up to around 15 KV. Another version built by many is here: http://www.somis.org/BVT.html Now that Im playing around with
/archives//html/Amps/2008-01/msg00065.html (14,869 bytes)

339. Re: [Amps] tuning bandpass filters (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 21 Jan 2008 11:23:30 -0500
The termination should be a broadband one and a pure resistance. A perfect filter will have no reflection. In the real world you want at least a 20db return loss in the passband. Im making an assumpt
/archives//html/Amps/2008-01/msg00129.html (8,568 bytes)

340. Re: [Amps] re dishtronix amp (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Tue, 22 Jan 2008 13:16:21 -0500
They must have a lot of faith in it, the extended warranty is ony $1000 a year! Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting
/archives//html/Amps/2008-01/msg00142.html (10,212 bytes)

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