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41. [Amps] Power-off tube cooling (score: 1): Author: ka1xo@juno.com; Date: Sun, 18 Jan 2004 23:36:11 GMT; Is not the junction where the metal pins travel through the ceramic base and/or glass of a power tube subject to a more rapid mean time between failure rate because of thermal stress? Would not a pow; /archives//html/Amps/2004-01/msg00181.html (8,282 bytes)
42. Re: [Amps] HV SAFETY QUESTION (score: 1): Author: ka1xo@juno.com; Date: Thu, 22 Jan 2004 10:07:34 GMT; Now lemme see here, (my computer printer needs a ribbon or something), I take two wet fingers and turn the HV on and go across the filter cap but turn the power on, right? YEEEEEEEEEEHAAAAAAAAAAAA! (; /archives//html/Amps/2004-01/msg00220.html (7,587 bytes)
43. Re: [Amps] HV SAFETY QUESTION (score: 1): Author: ka1xo@juno.com; Date: Fri, 23 Jan 2004 02:27:42 GMT; Ladies and Gents, Realizing the last posting was not entirely serious, my apologies ensue. However, the reason for getting your attention was based on a more previous posting where characters keyboar; /archives//html/Amps/2004-01/msg00229.html (9,574 bytes)
44. Re: [Amps] Tough valves? (score: 1): Author: ka1xo@juno.com; Date: Mon, 26 Jan 2004 01:07:52 GMT; ,Dear Sirs, Federal Express completely destroyed my GU-78b tetrode amplifier by dropping it on its face. The power transformer was removed and shipped in a separate wooden container, as per mfr specs; /archives//html/Amps/2004-01/msg00271.html (7,337 bytes)
45. Re: [Amps] Horizontal or verticle? (score: 1): Author: ka1xo@juno.com; Date: Mon, 26 Jan 2004 18:51:49 GMT; Dear Ian, The EMTRON DX-3 that FedEx destroyed had the GU-78b tube clamped down in four (4) places with teflon,just as you described. In addition, the finned skirt is clamped with a surrounding chimn; /archives//html/Amps/2004-01/msg00302.html (8,010 bytes)
46. Re: [Amps] Horizontal or verticle? (score: 1): Author: ka1xo@juno.com; Date: Wed, 28 Jan 2004 02:19:32 GMT; Dear Friends, Thank you for your advice on following the FedEx Claim procedure on their website to initiate a Claim. In the case of the destroyed EMTRON DX-3 all the required procedures were done. Al; /archives//html/Amps/2004-01/msg00317.html (8,196 bytes)
47. Re: [Amps] Horizontal or verticle? (score: 1): Author: ka1xo@juno.com; Date: Wed, 28 Jan 2004 03:21:53 GMT; Dear Sirs, What's a geode? _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2004-01/msg00318.html (7,498 bytes)
48. [Amps] A Crying Shame (score: 1): Author: ka1xo@juno.com; Date: Thu, 29 Jan 2004 07:17:03 GMT; Yes, that's right. Shame. Shame on us. We Americans have come up with so many fine ideas and products, such as televisions, FM commercial radio and unionism, only to have them taken from us because i; /archives//html/Amps/2004-01/msg00333.html (8,873 bytes)
49. [Amps] EMTRON OF AUSTRALIA (score: 1): Author: ka1xo@juno.com; Date: Thu, 29 Jan 2004 09:19:58 GMT; Ladies (and Germs), Rudi, the VK-land prexy of EMTRON was forwarded a posting from this reflector containing mention of how FedEx throughly destroyed the one-week-old DX-3 tetrode amplifier and he te; /archives//html/Amps/2004-01/msg00334.html (7,256 bytes)
50. Re: [Amps] L4B blower motor wanted (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Sat, 7 Feb 2004 08:32:42 -0500; Dear Mark, I thought all was lost when my ALPHA 77Sx blower was making noise, too. The ROTRON VS37A2-R1 was made in Woodstock, New York,\ and as Jimi said, "All those hippies cut of ALL their hair...; /archives//html/Amps/2004-02/msg00047.html (7,698 bytes)
51. [Amps] Hotel Room Machine Shop, Inc. (score: 1): Author: ka1xo@juno.com; Date: Tue, 10 Feb 2004 02:27:41 GMT; Extracting the vacuum variable from the ALPHA chassis is not as simple as extracting a 5U4-GB rectifier tube from an octal socket, it seems. After a hour or so of labor, the left side of the ALPHA is; /archives//html/Amps/2004-02/msg00059.html (7,419 bytes)
52. Re: [Amps] 9913 cable (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Tue, 10 Feb 2004 17:32:36 -0500; Several years ago I wrote an article for Satellite Operator about 9913 coax. It seems that Belden supplied me with a four hundred foot length of 9913 that displayed a high SWR at a particular frequen; /archives//html/Amps/2004-02/msg00069.html (9,914 bytes)
53. [Amps] A Personal Thanks (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Wed, 11 Feb 2004 12:40:35 -0500; ATN: Gary PETER W. DAHL COMPANY 5869 Waycross Avenue El Paso, Texas 79924 02-11-2004:1240EST Dear Gary, Your response this morning on learning that the wrong plate transformer was shipped to me was e; /archives//html/Amps/2004-02/msg00087.html (7,278 bytes)
54. [Amps] Russian doorknobs (score: 1): Author: ka1xo@juno.com; Date: Tue, 17 Feb 2004 00:52:45 GMT; Sirs, A recent purchase netted me some interesting capacitors. Two of these are 1,000pF, 20KV, 90KVaR and weigh over two pounds apiece. Two others are 470pF, 20KV, 60KVaR and are around one pound api; /archives//html/Amps/2004-02/msg00143.html (7,070 bytes)
55. Re: [Amps] Russian doorknobs (score: 1): Author: ka1xo@juno.com; Date: Tue, 17 Feb 2004 10:52:45 GMT; Dear Traian, Thanks for the reassurance about the KVI-3 capacitors. Dr. Alex sent M1500 type 90KVaR's that are extremely large and I know they will handle the Pi-circuitry RF current with no problem.; /archives//html/Amps/2004-02/msg00147.html (6,969 bytes)
56. Re: [Amps] Capacitors Question (score: 1): Author: ka1xo@juno.com; Date: Wed, 18 Feb 2004 07:03:57 GMT; Dear Jorge, Silver-Dipped Ruby Mica capacitors make excellent input couplers. Output tank circuit devices above 1 MHz should avoid mica devices, however, but input components seem to team up well wit; /archives//html/Amps/2004-02/msg00159.html (6,759 bytes)
57. [Amps] 8877 tubes now being rebuilt (score: 1): Author: ka1xo@juno.com; Date: Wed, 25 Feb 2004 02:17:02 GMT; Jerry at Economy Electronics, << http://www.economyelectronics.com >>, and e-mail, << EconomyEl@aol.com >> told me today that a new program to resurrect 8877's is in place and operating, and they wan; /archives//html/Amps/2004-02/msg00234.html (6,602 bytes)
58. Re: [Amps] ITT Jennings part numbers (score: 1): Author: ka1xo@juno.com; Date: Fri, 27 Feb 2004 06:46:18 GMT; The ceramic vacuum variable in the 32XX series of ALPHA 77SX amplifiers had a Jennings UCSF - 500 - 0105 part number. Actually, the whole part number was << CSVF-500/UCSF-500-0105. The ratings were 1; /archives//html/Amps/2004-02/msg00272.html (7,374 bytes)
59. Re: [Amps] Grounded B+ amplifier (score: 1): Author: ka1xo@juno.com; Date: Fri, 27 Feb 2004 06:55:54 GMT; Dear Bill, I can remember seeing some amplifier circuits in the either 1953 or 1978 ARRL handbook that employed the ground-potential anode and where the cathode was highly negative to the ground. In; /archives//html/Amps/2004-02/msg00273.html (7,931 bytes)
60. Re: [Amps] Emtron DX-3 (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Fri, 27 Feb 2004 14:35:58 -0500; Mark, You caught me at the hotel room computer. The EMTRON DX-3 review is not on this machine. I will send it to you on Sunday night. 1. The EMTRON DX-series of amplifiers are experiencing a breakdow; /archives//html/Amps/2004-02/msg00292.html (9,618 bytes)

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