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61. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 8 Sep 2001 09:38:27 -0700; Ian, is there any preference for the type of resistor used for the glitch resistor? I have some 25 ohm/25 watt Dale RER type metal body resistors, but I am concerned that they might be prone to flash; /archives//html/Amps/2001-09/msg00129.html (12,716 bytes)
62. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 8 Sep 2001 09:59:02 -0700; Okay, I'll bite, Rich. Which type of resistor should I use and where can I get them? Mike, W4EF......... -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrat; /archives//html/Amps/2001-09/msg00132.html (9,964 bytes)
63. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 9 Sep 2001 15:14:08 -0700; Looks like the RCD resistors will do the trick (the 20W parts should fit nicely in the space available inside the L-7 PS). Thanks to Tom, Rich, Todd, Ian, Phil et al for the quick education on glitch; /archives//html/Amps/2001-09/msg00159.html (10,510 bytes)
64. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 9 Sep 2001 19:27:07 -0700; Hi Rich, Would there be any concern about the lower maximum resistance dictated by the use of the 5 watt steady-state rating versus using a 20 or 50 watt resistor? At 750mA worst case steady-state an; /archives//html/Amps/2001-09/msg00163.html (12,542 bytes)
65. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 9 Sep 2001 21:03:50 -0700; Hi Rich, Yes, of course, a faster dump means more peak current - that is my concern. The 10 ohm resistor and the components/wiring in series with it will experience a peak current ~3.6 times greater; /archives//html/Amps/2001-09/msg00165.html (15,081 bytes)
66. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 11 Sep 2001 02:57:45 -0700; Wouldn't the 4CX5000 tend to have a larger filter capacitor, and thus a bit more energy to dump, or is peak current the real concern? With Rich's example of the 10 ohm glitch R in the SB-220, and ass; /archives//html/Amps/2001-09/msg00200.html (11,091 bytes)
67. [AMPS] SB-1000 mods? (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 11 Sep 2001 21:09:53 -0700; Hmmm, if there are no good rules of thumb and no peak current/energy ratings for anode supply components, how does one go about sizing the glitch resistor? I guess you start out small and keep making; /archives//html/Amps/2001-09/msg00209.html (11,004 bytes)
68. [AMPS] Henry 2kd classic (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 13 Sep 2001 22:02:04 -0700; Yes, my inherited homebrew 811 amp uses something similar. As I believe you and I discussed before, the 811 circuit is a copy of the Collins 30L1 bias circuit. Any dowside risk to gutting the grid ca; /archives//html/Amps/2001-09/msg00240.html (11,205 bytes)
69. [AMPS] gettering (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 15 Sep 2001 00:13:49 -0700; Just to illustrate the scale of things I did a little research on the subject of temperature and color. Per "Care and Feeding of Power Grid Tubes", 4th printing 1982, a thoriated tungsten filament at; /archives//html/Amps/2001-09/msg00262.html (9,388 bytes)
70. [AMPS] IMD (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 18 Sep 2001 18:24:11 -0700; Has anyone had any luck using receiver feeding a soundcard in conjunction with a program like Spectrum Lab to resolve the closely spaced IM sidebands from a PA? Mike, W4EF........... -- FAQ on WWW: h; /archives//html/Amps/2001-09/msg00334.html (9,504 bytes)
71. [AMPS] IMD (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 18 Sep 2001 21:56:52 -0700; I can give you a time, day of the week, and a frequency if you like. On one particular evening I received a long lecture on the superior nature of the 64 bit A/D converters used in a domestically bui; /archives//html/Amps/2001-09/msg00336.html (9,858 bytes)
72. [AMPS] IMD (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Tue, 18 Sep 2001 22:05:41 -0700; What is the limitation, the close-spaced IM of the typical receiver, or is it actually a limitation in Spectrum lab's FFT algorithm (I haven't tried resolving closely spaced signals with spectrum lab; /archives//html/Amps/2001-09/msg00337.html (10,358 bytes)
73. [AMPS] IMD (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 20 Sep 2001 09:24:27 -0700; Seems like it would be a simple matter to amplitude modulate the noise spectrum with a 1 to 5 Hz sine wave in order to simulate the speech envelope. A more complicated, but perhaps more realistic imp; /archives//html/Amps/2001-09/msg00372.html (9,807 bytes)
74. [AMPS] Plate Choke test with MFJ-259B (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 27 Sep 2001 21:04:11 -0700; How about connecting the 259 directly to the output side of the blocking cap (with the PI network disconnected)? If the choke is self-resonant, I would expect the shunt impedance seen by the 259 to d; /archives//html/Amps/2001-09/msg00452.html (9,817 bytes)
75. [AMPS] G3RZP (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Fri, 28 Sep 2001 20:35:45 -0700; shrew (shroo) n. 1. Any of various small, chiefly insectivorous mammals of the family Soricidae, resembling a mouse but having a long pointed snout and small eyes and ears. Also called shrewmouse. 2; /archives//html/Amps/2001-09/msg00507.html (9,581 bytes)
76. [AMPS] Kenwood ts2000 driving a G2DAF amp (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 4 Aug 2001 15:37:04 -0700; Kenwood TS-830S Mike, W4EF...... -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contestin; /archives//html/Amps/2001-08/msg00050.html (10,543 bytes)
77. [AMPS] Band Switch Stop on Drake L-7 (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sat, 4 Aug 2001 06:00:29 -0700; Hi Joe, I didn't get any other replies so I took another look at the amp last night. I turns out that I was taking the wrong approach by try to come in from the top/bottom. The correct procedure for; /archives//html/Amps/2001-08/msg00397.html (10,802 bytes)
78. [AMPS] Label Stock for Laser Printers (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 15 Jul 2001 18:33:48 -0700; Does anyone know where I can get adhesive backed label stock for laser printers. I am interested in both clear and white background material with a durable gloss finish that won't pick up fingerprint; /archives//html/Amps/2001-07/msg00175.html (7,656 bytes)
79. [AMPS] about one of the latest v's (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Sun, 29 Jul 2001 09:34:59 -0700; Be careful, a friend of mine told me recently that SirCam worm for instance sends a .VBS (visual basic script) file disguised as a .XLS attachment. To make matters worse, this worm will probably come; /archives//html/Amps/2001-07/msg00359.html (9,809 bytes)
80. [AMPS] continued Alpha work (score: 1): Author: Michael Tope" <W4EF@dellroy.com (Michael Tope); Date: Sun, 3 Jun 2001 08:46:36 -0700; If there is a problem with the metering circuit as you suggest, Tom, whereby the grid meter is partially indicating plate current, then shouldn't the amp be reading some grid current under conditions; /archives//html/Amps/2001-06/msg00029.html (10,631 bytes)

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