Search String: Display: Description: Sort:

Results:

References: [ +from:km1h@jeremy.mv.com: 3440 ]

Total 3440 documents matching your query.

281. Re: [Amps] Bird 1KW+ Load Resistor/possible danger ! (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 17 Nov 2007 14:21:24 -0500
Worrying about PCB oil is about as ridiculous as worrying about global warming. Both will take a long time to hurt you and thats even questionable. Take reasonable precautions, dont bathe in it or mi
/archives//html/Amps/2007-11/msg00230.html (12,175 bytes)

282. Re: [Amps] Bird 1KW+ Load Resistor/possible danger ! (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 17 Nov 2007 17:49:30 -0500
It concerns me in a small way but since there is nothing that any humans can do Im not going to brood over it. The whole solar system is in a warming cycle. Yep I would hope that no hams are going to
/archives//html/Amps/2007-11/msg00239.html (11,892 bytes)

283. Re: [Amps] more dangers in our shack (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 17 Nov 2007 18:47:13 -0500
Heath SB-230 and a Henry VHF amp come to mind that use the 8873. Also some Motorola VHF FM amps that use a conduction cooled 4CX250. And GE VHF/UHF repeaters using the 8072. I have also seen a fellow
/archives//html/Amps/2007-11/msg00241.html (9,539 bytes)

284. [Amps] BeO in tubes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 18 Nov 2007 10:02:14 -0500
The original RCA 8072/8121/8122 had no screen grid support which resulted in heat distortion bending it into the plate and ZAP. Around late 1966 ceramic spacers were used; Ive no idea if any BeO was
/archives//html/Amps/2007-11/msg00246.html (8,874 bytes)

285. Re: [Amps] BeO in tubes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 18 Nov 2007 13:58:51 -0500
"Exposure may result in death." Duh, isnt that what I said over 24 hours ago. It has been beat to death many time on several forums over the years. No need to beat a dead horse. Carl KM1H ___________
/archives//html/Amps/2007-11/msg00252.html (13,119 bytes)

286. Re: [Amps] BeO in tubes (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 18 Nov 2007 15:54:21 -0500
I suspect a spelling problem. It is all related to BeeR. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2007-11/msg00257.html (8,487 bytes)

287. Re: [Amps] Cross Needle Meters (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 18 Nov 2007 15:58:04 -0500
MFJ/Ameritron they sell theirs to individuals. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2007-11/msg00258.html (7,414 bytes)

288. [Amps] Steel chassis wanted (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sun, 18 Nov 2007 19:24:28 -0500
Im looking for a couple of Hammond or similar steel chassis for mounting power supplies and modulators; 17 x 13 x 3 or 4. No holes preferred but what do you have. A little bit of light rust OK as the
/archives//html/Amps/2007-11/msg00267.html (6,275 bytes)

289. Re: [Amps] LK450 Mods (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Mon, 19 Nov 2007 11:17:02 -0500
No mods were necessary that I know of unless you want to build up as a 6M monobander. Some have changed the resistor network for the fan speed but thats about it. Carl KM1H __________________________
/archives//html/Amps/2007-11/msg00275.html (7,810 bytes)

290. Re: [Amps] Winding large inductors (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Tue, 20 Nov 2007 17:50:13 -0500
If you use soft copper tubing as used in refrigirator ice makers snd isnt necessary. Wind the coil on a round form a bit smaller than the desired end result. Clamp one end in a vise inorder to have t
/archives//html/Amps/2007-11/msg00291.html (9,574 bytes)

291. Re: [Amps] Hy-Gain Hy-Tower Power handleing (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 21 Nov 2007 09:03:39 -0500
As much as you want in standard configuration. A contest station I used to operate at in the 60's had a phased pair on 80 with a rather hot 4-1000A. I dont know what the 160 mod consists of. Carl KM1
/archives//html/Amps/2007-11/msg00302.html (7,563 bytes)

292. Re: [Amps] Soft 572b's (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 22 Nov 2007 09:40:24 -0500
FL-1 is in the Heathkits and Drake has theirs too. If the switch doesnt physically move to the unstencilled 10M position then the detent needs to be defeated so the switch can rotate. Bend out of the
/archives//html/Amps/2007-11/msg00328.html (10,604 bytes)

293. Re: [Amps] PENTA 572b'S (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 22 Nov 2007 11:49:35 -0500
All Chinese tubes are the same now. All RF Parts does is charge you more for the honor of having their name on them. Ive bought directly from Hong Kong as well as the Pentas, no problems in Clipperto
/archives//html/Amps/2007-11/msg00330.html (7,821 bytes)

294. Re: [Amps] Svetlana 572b (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 22 Nov 2007 12:06:38 -0500
They make good modulators but are troublesome at RF in many amps. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/l
/archives//html/Amps/2007-11/msg00333.html (7,783 bytes)

295. Re: [Amps] a small question (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 22 Nov 2007 17:11:51 -0500
It wont hurt anything. The tube is not conducting and the grids are rated at 65 watts each as a short term dummy load. Carl KM1H a small question.if i am working dual 3-500z on 20m and putting out 1k
/archives//html/Amps/2007-11/msg00340.html (7,304 bytes)

296. Re: [Amps] (no subject) (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 22 Nov 2007 17:18:45 -0500
Excessive grid current can hurt the tubes, sustained arcs will destroy the variable caps and maybe cause the bandswitch to arc. Carl KM1H _______________________________________________ Amps mailing
/archives//html/Amps/2007-11/msg00341.html (7,333 bytes)

297. Re: [Amps] Chinese 572b's on ebay (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 23 Nov 2007 18:37:05 -0500
Ive bought about 2 dozen 572B's from him including another 4 earlier today. Quick delivery and trouble free. Carl KM1H _______________________________________________ Amps mailing list Amps@contestin
/archives//html/Amps/2007-11/msg00350.html (7,926 bytes)

298. Re: [Amps] Chinese 572b's on ebay (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Fri, 23 Nov 2007 18:40:31 -0500
Correction, it is jcc368 that I buy from. Today was Ebay item 110195239098. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com
/archives//html/Amps/2007-11/msg00351.html (7,469 bytes)

299. Re: [Amps] Chinese 572b's on ebay (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 24 Nov 2007 09:02:20 -0500
I can just imagine what the actual selling price at the factory is. It was fine before the Chinese became Wall Street capitalists. Carl KM1H _______________________________________________ Amps maili
/archives//html/Amps/2007-11/msg00353.html (9,415 bytes)

300. Re: [Amps] MFJ tuner and SB-200 for input matching (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Sat, 24 Nov 2007 21:40:33 -0500
Yes but the pi net values are wrong for best efficiency so dont spend a lot of time tuning and keep the output below 600W otherwise the switch might complain. Carl KM1H ______________________________
/archives//html/Amps/2007-11/msg00359.html (8,638 bytes)

Current List: 281 - 300
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