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Total 14 documents matching your query.

1. [AMPS] 4-1000 (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Fri, 5 Jun 1998 16:14:40 +0100; I'd say the choice is very dependent on how much drive power you have. As far as you can trust the ARRL handbook, it suggests about 10dB of gain in GG. If you want 1500 out, that could be a problem.; /archives//html/Amps/1998-06/msg00072.html (7,155 bytes)
2. [AMPS] 4-1000 (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 5 Jun 98 10:54:16 -0800; ? Agreed, however, due to the problems involved in achieving large RF voltage changes across the capacitive grid, the practical max. gain of a grid-driven tetrode or pentode is seemingly in the 100; /archives//html/Amps/1998-06/msg00076.html (7,469 bytes)
3. [AMPS] 4-1000 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Fri, 18 Jul 1997 09:22:00 +0100; Lane, Are you looking to run these guys as a linear, or as plate modulated am? If the latter, then you'll be pushing the vacuum variables if you run 5KV on the plates, since at full modulation, the p; /archives//html/Amps/1997-07/msg00117.html (8,056 bytes)
4. [AMPS] 4-1000 (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 18 Jul 97 06:10:05 -0700; True, Peter. However, since the RF peak V rating of vacuum variable capacitors is 60% of the DC/60Hz rating, the 12kV rating is actually a 7200 RF peak V rating. IMO, breakdown of such a capacitor w; /archives//html/Amps/1997-07/msg00121.html (8,884 bytes)
5. [AMPS] 4-1000 (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 18 Jul 97 07:23:25 -0700; It's in the Jenning Radio Co. catalog. I am not certain, although I have a suspicion that arcing ability increases with frequency. ....... I have seen some incredulous arcs in my 432MHz 4cx250R ampl; /archives//html/Amps/1997-07/msg00126.html (7,320 bytes)
6. [AMPS] 4-1000 (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Fri, 18 Jul 1997 14:28:48 +0000; To: <amps@contesting.com> Another case of improperly reading the text Peter. Here's what the text says on page 8 of my brand new Jennings catalog: "RF working voltage is the maximum peak RF voltage; /archives//html/Amps/1997-07/msg00135.html (8,799 bytes)
7. Re: [Amps] 4-1000 (score: 1): Author: "Rich" <rdjmgmt@socket.net>; Date: Sun, 11 Sep 2005 11:34:37 -0500; Jack, if and when your get good information on a 4-1000 amp I sure could use a picture or two of the input/output relay set up, I have seen it on a schematic where the input is on the far left and th; /archives//html/Amps/2005-09/msg00091.html (7,605 bytes)
8. Re: [Amps] 4-1000 (score: 1): Author: HAROLD B MANDEL <ka1xo@juno.com>; Date: Sun, 11 Sep 2005 13:52:59 -0400; Dear Rich, 1. What anode voltage and current is your supply rated at? 2. What resistance and wattage bleeder did you go with? 3. Did you use a 200 to 400 watt, 25 ohm anode protection resistor? 4. Di; /archives//html/Amps/2005-09/msg00092.html (7,513 bytes)
9. [Amps] 4-1000 (score: 1): Author: "Rex Lint" <rex@lint.mv.com>; Date: Sat, 16 Jul 2011 11:28:51 -0400; Guys, I've got $45 and I'm looking for a 4-100A. Any takers? -Rex K1HI Rex Lint Merrimack, NH WWW.QRZ.COM/db/k1hi _______________________________________________ Amps mailing list Amps@contesting.com; /archives//html/Amps/2011-07/msg00190.html (6,203 bytes)
10. Re: [Amps] 4-1000 (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Sun, 17 Jul 2011 06:24:56 +0800; For a little more, you can take a risk on ebay item 130545179195. I wouldn't but you may. 73, Alek VK6APK From sunny Binningup, Western Australia http://www.qrz.com/db/vk6apk http://www.qrz.com/db/vk; /archives//html/Amps/2011-07/msg00191.html (7,953 bytes)
11. Re: [Amps] 4-1000 (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sat, 16 Jul 2011 21:07:05 -0400; When 4X1's and other tubes were common in BC AM and FM TX's the pulls were either trashed or given to anyone who asked. I used to get them regularly, build amps for others and then Id be ready for mo; /archives//html/Amps/2011-07/msg00193.html (10,338 bytes)
12. Re: [Amps] 4-1000 (score: 1): Author: "DAVE WHITE" <mausoptik@btinternet.com>; Date: Sun, 17 Jul 2011 10:50:58 +0100; I think the most I paid for a pair of good 4-1000A pulls was about DM100 (about GBP35 at the time). I did come across a NOS Penta 4-1000A at Weinheim a number of years ago. I didn't know what to expe; /archives//html/Amps/2011-07/msg00196.html (12,513 bytes)
13. Re: [Amps] 4-1000 (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sun, 17 Jul 2011 08:15:56 -0400; Dave, the 8930 is in the AM-6154 and 6155 FAA amps, that are easily converted to 144, 222 and 432 MHz, which Im fairly sure hasnt made it across the pond in much quantity. They were 50W out AM linear; /archives//html/Amps/2011-07/msg00198.html (14,489 bytes)
14. Re: [Amps] 4-1000 (score: 1): Author: "DF3KV" <df3kv@t-online.de>; Date: Sun, 17 Jul 2011 14:37:06 +0200; I had three AM-6154. In the early 80s those were sold in quantity over here. One was with DX393, the other with 8930s. The Russian GS-36B runs pretty well with them too. 73 Peter, DJ7WW Dave, the 893; /archives//html/Amps/2011-07/msg00199.html (14,859 bytes)

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