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References: [ +from:i4jmy@iol.it: 231 ]

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41. [AMPS] coax connector ratings (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Fri, 28 Sep 2001 15:49:40 +0200; <kenw2dtc@home.com>, "Radio-contesting.com" <amps@contesting.com> cellular connectors load. A connector that's qulified up to 10-20 GHz more easily *keeps* its power rating when the frequency is rai; /archives//html/Amps/2001-09/msg00461.html (13,108 bytes)
42. [AMPS] TS830S Vs FT-102 and TS930S (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Mon, 6 Aug 2001 12:21:30 +0200; In the early 80', just after the 21st cycle peak, I had two TS830. Incidentally one had sometimes a problem in the PLL that was fixed following Kenwood directions (ground contact). I never tried on 1; /archives//html/Amps/2001-08/msg00065.html (8,243 bytes)
43. [AMPS] 14KW (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 17 Aug 2001 02:02:35 +0200; I really don't understand the thrill to work the DX with a commercial equipment and antenna seen as black boxes, found with the "help" of packetcluster and virtually with no knowdledge of anything, p; /archives//html/Amps/2001-08/msg00167.html (9,441 bytes)
44. [AMPS] QRP (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 17 Aug 2001 11:37:24 +0200; Hi Phil, what do You mean for QRP ? A QRP setup or a QRP signal ? A low power TX but a gain antenna, or a LOW e.r.p. and odd pieces of wire to radiate some energy ? 73, Mauri I4JMY may of signal comp; /archives//html/Amps/2001-08/msg00180.html (12,319 bytes)
45. [AMPS] HF Power Divider/Combiner (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 8 Jun 2001 20:51:28 +0200; How many ports ? 73, Mauri -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com; /archives//html/Amps/2001-06/msg00076.html (7,909 bytes)
46. [AMPS] RMS Power (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Thu, 28 Jun 2001 13:25:59 +0200; An inductively coupled rectifier/voltage meter. module. The indication of the Bird 43, and other wattmeters of that kind, is calibrated RMS, but only when the duty cycle is proper for the internal c; /archives//html/Amps/2001-06/msg00304.html (8,530 bytes)
47. [AMPS] Self oscillation with homebrew 3-1000Z ???? (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Mon, 7 May 2001 10:07:43 +0200; I fully agree with Tom points but I like to add that some tube is easy to be managed while others with high internal parasitic reactances are ia pain to deal with. Given a feedthrough capacitance, wh; /archives//html/Amps/2001-05/msg00100.html (10,961 bytes)
48. [AMPS] UPDATE ON 3-1000Z OSCILLATION (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Thu, 10 May 2001 17:26:29 +0200; affects A human beeing with his diseases is thousand times more complex and critical than an amplifier althoug both can be ill. While experimenting with a human beeing has moral implications because; /archives//html/Amps/2001-05/msg00157.html (10,313 bytes)
49. [AMPS] PSU Question (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 11 May 2001 22:49:36 +0200; This is a multi-part message in MIME format. --=_NextPart_000_000F_01C0DA6C.A7434260 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'd choose the full bri; /archives//html/Amps/2001-05/msg00194.html (10,619 bytes)
50. [AMPS] Re:PC power supplys (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Thu, 19 Apr 2001 10:17:24 +0200; The best way to insure the longest life with best performances is to keep constant the most proper filament emission. 73, Mauri I4JMY -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: a; /archives//html/Amps/2001-04/msg00435.html (7,512 bytes)
51. [AMPS] basic question about dipping the plate (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Wed, 25 Apr 2001 12:37:36 +0200; As any circuit is solved (simplified), generators opened or closed etc. finally an equivalent R, XL and XC are found. Of course a real inductor is not only inductance as well a capacitor is not pure; /archives//html/Amps/2001-04/msg00519.html (11,444 bytes)
52. [AMPS] Buffer/Driver Stage for 4-1000 Amp (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Fri, 27 Apr 2001 15:37:01 +0200; deterioration Not necessarily. If the driving power is correct not to overdrive any of the amplifiers in the chain, an extra stage can be useful to reduce the IMD or even noise. The most perfect fin; /archives//html/Amps/2001-04/msg00550.html (9,894 bytes)
53. [AMPS] IC-PW1 Acom2000 (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Thu, 1 Mar 2001 13:17:13 +0100; The future is all for semiconductors although tubes are more friendly and convenient for home brewing and for an elite of individuals (RF technicians) that's anyway disappearing from the world. Sever; /archives//html/Amps/2001-03/msg00014.html (10,704 bytes)
54. [AMPS] 3CX3000A7 (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Sun, 11 Mar 2001 19:09:17 +0100; The 3CX3000A7 (and the descendant 3CX6000A7) can't give 2A plate with 100W drive, but perfectly deliver >2KW out with 100W in and 6.7 Kv plate. At 100W drive its gain is typically 13dB in Gg. No way; /archives//html/Amps/2001-03/msg00086.html (10,101 bytes)
55. [AMPS] 3CX3000A7 (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Sun, 11 Mar 2001 23:05:04 +0100; Incidentally, the output capacitance of a 3CX3000A7 in Gg is 24pf that's a little bit more than twice the single 8877. The 38 pf is not "huge" and anyway is the input capacitance. A paired 8877, less; /archives//html/Amps/2001-03/msg00089.html (10,461 bytes)
56. [AMPS] SB-220 Amplifiers and Garage Sales!! (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 23 Mar 2001 20:49:48 +0100; The problem of suppressors becomes a deal when the VHF parasitic is enough close to the operating frequency of the amplifier. When the ipotetical VHF parasitic happens very off the HF range, let's sa; /archives//html/Amps/2001-03/msg00223.html (14,470 bytes)
57. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Fri, 2 Feb 2001 09:17:30 +0100; If you can adjust driving power to obtain the desired out, the CW position becomes basically meaningless, expecially if considering that tubes work better at 3Kv plate voltage. Anyway, to realize a S; /archives//html/Amps/2001-02/msg00047.html (10,055 bytes)
58. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Fri, 2 Feb 2001 11:11:59 +0100; that too Reducing the drive power and consequently the output power, the RMS developed for a stated duty cycle is accordingly reduced. Ciao, Rich 73, Mauri -- FAQ on WWW: http://www.contesting.com/F; /archives//html/Amps/2001-02/msg00053.html (9,914 bytes)
59. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: i4jmy@iol.it (Maurizio Panicara); Date: Fri, 2 Feb 2001 19:47:32 +0100; Hi Jeff, I'm sorry to correct you but gain and efficiency increase, although this is not the original point. 73, Mauri I4JMY -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contes; /archives//html/Amps/2001-02/msg00066.html (10,305 bytes)
60. [AMPS] Band Pass Filters for Solid State Amplifiers (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Tue, 2 Jan 2001 10:17:45 +0100; usually not Hi Jim, You're correct with the dominance of odd harmonics with pushpull amplifiers but a typical coaxial cable stub filter that has no attenuation on the fundamental frequency won't hav; /archives//html/Amps/2001-01/msg00033.html (7,508 bytes)

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