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41. [AMPS] Screen regulator circuit needed (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 18 Nov 1998 15:40:58 -0500; Message text written by Rich Measures . < For the record, the Zeners used to derive the comparison data illustrated on Ian's web site were nine 20W Philips/Mullard BZY93C39 purchased specifically for; /archives//html/Amps/1998-11/msg00254.html (9,418 bytes)
42. [AMPS] Screen regulator circuit needed (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 18 Nov 1998 18:48:51 -0500; Message text written by Rich Measures The IMD performance with the Zener chain was consistently worse than the IMD performance with the active regulator. But how is that relevant to your assertion th; /archives//html/Amps/1998-11/msg00263.html (9,781 bytes)
43. [AMPS] 4CX600JA pinouts (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Sun, 18 Oct 1998 17:27:03 -0400; Someone here was asking for the pinouts of the 4CX600JA. It's not at all like a 4CX250. Pin 1 and the base ring are the screen. Pins 2, 4 and 7 are the control grid and pins 3, 6 and 8 are the cathod; /archives//html/Amps/1998-10/msg00269.html (7,374 bytes)
44. [AMPS] 4CX600JA pinouts (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 19 Oct 1998 06:48:53 -0400; Message text written by Radio WC6W accommodate these tubes, as well as a pin 5? :-)< The SK-607 is dimensionally identical to the SK-600 except that it has a pin 5 and there's a 6-32 UNC connection t; /archives//html/Amps/1998-10/msg00282.html (7,872 bytes)
45. [AMPS] Re: Antenna System power ratings (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 20 Oct 1998 14:45:15 -0400; Message text written by Peter Chadwick Surely a doyen of the British amateur radio scene, ex-president and holder of assorted high offices in the RSGB, doesn't exceed the UK legal limit of 400W? John; /archives//html/Amps/1998-10/msg00303.html (8,377 bytes)
46. [AMPS] Re: Antenna System power ratings (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 20 Oct 1998 17:59:38 -0400; Message text written by Jon Ogden talking about currents on an antenna....... Yes. Peter's been caught 'bang to rights', as the UK criminal fraternity is supposed to say when arrested :) Oh....who me; /archives//html/Amps/1998-10/msg00308.html (8,838 bytes)
47. [AMPS] Re: Antenna System power ratings (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 20 Oct 1998 17:59:41 -0400; Message text written by INTERNET:LOMAX1@prodigy.net Generally yes, although a few (about 20, I believe) have special permits to run 1kW. I seem to remember that these are specific to a given band and; /archives//html/Amps/1998-10/msg00309.html (8,463 bytes)
48. [AMPS] Re: Antenna System power ratings (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 21 Oct 1998 06:17:58 -0400; Message text written by Mike Willis Ah yes. What's the quotation from Hamlet about a custom more honoured in the breach than in the observance? <g> John Nelson GW4FRX -- FAQ on WWW: http://www.contes; /archives//html/Amps/1998-10/msg00334.html (8,261 bytes)
49. [AMPS] Re: Antenna System power ratings (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 21 Oct 1998 06:18:00 -0400; Message text written by INTERNET:conrad.farlow@virgin.net Indeed. Must be peak-music-power watts, or PMPO watts <g>. John Nelson GW4FRX -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submission; /archives//html/Amps/1998-10/msg00335.html (8,090 bytes)
50. [AMPS] heater surge (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 2 Sep 1998 17:52:57 -0400; Message text written by Peter Chadwick More accurately, "as adopted and written up by GW4FRX for amateur use based on the experiences of large-scale industrial and professional UK users". I didn't or; /archives//html/Amps/1998-09/msg00036.html (6,926 bytes)
51. [AMPS] Purpose of CW/SSB switch (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 14 Sep 1998 06:28:26 -0400; Message text written by "Richard W. Ehrhorn" carrier-type operations in amplifiers like the Alpha 87A < That's interesting. My 87A has a switch marked HI and LO on the front panel and I've often wond; /archives//html/Amps/1998-09/msg00184.html (8,467 bytes)
52. [AMPS] Purpose of CW/SSB switch (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 14 Sep 1998 14:45:19 -0400; Message text written by "Richard W. Ehrhorn" used the LO position. We've left it in the 87A simply so as not to make an unnecessary and potentially confusing change that might engender the question,; /archives//html/Amps/1998-09/msg00190.html (8,976 bytes)
53. [AMPS] Properties of plastics at 10 GHz (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Thu, 13 Aug 1998 17:26:55 -0400; Message text written by Jon Ogden it's not rare as some islands, but give me a break. < FWIW, my definition of "rare" is that I haven't worked it and my friends have, it's not really that rare. If I; /archives//html/Amps/1998-08/msg00122.html (8,818 bytes)
54. [AMPS] Re: Wanted: 2 X 4CX250r amp article (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 15 Jul 1998 17:10:15 -0400; Message text written by Jan-Erik Holm doesnt use sockets and also very easy to build, will put out up to 2500 Watts if you squeze it a bit.< I've heard of the millennium bug but my computer reports t; /archives//html/Amps/1998-07/msg00085.html (7,769 bytes)
55. [AMPS] Re: SSB Power Output (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 21 Jul 1998 15:31:42 -0400; Message text written by INTERNET:DJ2001@aol.com problems. < It would be interesting to know what the intermod performance is like at that power level. Quoting SSB power output without referencing it; /archives//html/Amps/1998-07/msg00122.html (8,437 bytes)
56. [AMPS] Re: SSB Power Output (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 22 Jul 1998 05:45:33 -0400; Message text written by Bob Sutton similar for all three brands ... typically a 0.5dB (12W?) increase from the nominal 100W pep power level resulted in an increase of 8-10dB in the intermod "splatter; /archives//html/Amps/1998-07/msg00127.html (9,244 bytes)
57. [AMPS] ssb power (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 22 Jul 1998 11:31:42 -0400; Message text written by INTERNET:kz5qdx@communique.net them around.< In the context of weak-signal VHF/UHF work where even fractions of a dB here and there can add up to something worth having, there; /archives//html/Amps/1998-07/msg00131.html (8,024 bytes)
58. [AMPS] Re: SSB Power Output (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 22 Jul 1998 18:56:04 -0400; Message text written by Jon Ogden seen the comments! Yes, they say, it DOES make a difference. I don't buy it though.< It's hard to understand the reasoning, since 1.76dB doesn't remotely sound like; /archives//html/Amps/1998-07/msg00146.html (9,324 bytes)
59. [AMPS] Re: SSB Power Output (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Thu, 23 Jul 1998 06:17:08 -0400; Message text written by Bob Sutton response/quality and operator technique play VERY significant parts too. < Is that the case even if the receiver is totally flattened and there's a roaring wall of; /archives//html/Amps/1998-07/msg00156.html (9,216 bytes)
60. [AMPS] Re: SSB Power Output (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Thu, 23 Jul 1998 06:17:10 -0400; Message text written by Jon Ogden to work rare DX with 100 Watts?< Because transmitter power output is only one factor of several (antenna gain and pattern, antenna siting, Fresnel zones, feeder loss; /archives//html/Amps/1998-07/msg00157.html (9,639 bytes)

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