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41. FET vs Tube QRO (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu Apr 11 14:00:57 1996; Hi Mario, This isn't a good forum for in depth theoretical explainations, but this touches on an area that does matter, wasting money and time chasing problems that don't exist. This will be my last; /archives//html/CQ-Contest/1996-04/msg00091.html (33,878 bytes)
42. Using tubes - new vs. old (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Tue Apr 16 12:34:31 1996; Barry, It's a good idea to cycle the spare tubes through the amp every few months. One reason is if the tube has gas ingress the tube has a chance to "getter" itself before going beyond hope. Small e; /archives//html/CQ-Contest/1996-04/msg00120.html (7,663 bytes)
43. Stub QTHs - pretty much so a consensus...but (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu Apr 18 12:18:17 1996; There are lot's of designs for stub systems, but the design for maximum harmonic attenuation will always place the stubs about 1/4 wl apart at the reject frequency, and the first stub 1/4 wl from a l; /archives//html/CQ-Contest/1996-04/msg00133.html (17,222 bytes)
44. TVI Tips (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Tue Apr 23 11:59:10 1996; I can tell you a **poor source** for TVI filters, Tucker electronics. The Tucker low-pass filter my friend bought was in a pretty looking, heavy case. But the case had paint on the cover mounting edg; /archives//html/CQ-Contest/1996-04/msg00157.html (7,654 bytes)
45. TVI Tips (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed Apr 24 10:44:39 1996; A few more comments on TVI. Low frequency ferrites become completely non-magnetic at high frequencies. Randomly "selected" cores may work anywhere in the range of great to actually reducing the imped; /archives//html/CQ-Contest/1996-04/msg00168.html (9,112 bytes)
46. Antenna input sought (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Fri Apr 26 10:31:22 1996; Remember that a 1/4 long conductor **inverts** the impedance, so simnce (I assume) the base of the tower is stuck in the mud, the end 60 feet away will be a high impedance, not a ground. Again you wi; /archives//html/CQ-Contest/1996-04/msg00188.html (10,630 bytes)
47. Rain Static (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Mon Apr 29 12:13:50 1996; Ward, I tried, years ago, to insulate an antenna to eliminate this problem but that effort was never *in the least* successful. The only thing that helped was installing a tall grounded mast above th; /archives//html/CQ-Contest/1996-04/msg00210.html (16,867 bytes)
48. Rain Static (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Mon Apr 29 17:25:15 1996; OK, here's some more things to think about. To create RF noise, the rise time of any current pulse has to be very fast. If the rise time is slow, you won't hear any RF noise. This is true even though; /archives//html/CQ-Contest/1996-04/msg00214.html (30,391 bytes)
49. Elevated cable runs (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Fri May 3 16:31:12 1996; atleast Scott, elevated cable runs are an open invitation for lightning and other problems.Use em if you have to, but be aware of the dangers! 73 Tom -- ARI International Dx Contest 1996 -- AIM It's; /archives//html/CQ-Contest/1996-05/msg00010.html (12,524 bytes)
50. Elevated cable runs (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Sat May 4 10:29:35 1996; That's part of what I was thinking of, the other part was RF induced currents in the feeder. The main difference between *proper* commercial installations and typical Ham-type installation is groundi; /archives//html/CQ-Contest/1996-05/msg00015.html (9,412 bytes)
51. IN SEARCH OF 5 OHMS !! (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu May 9 02:46:28 1996; The sad part is after all the work and effort, dc or low frequency AC ground resistance still doesn't give the user a complete picture of how effective the ground system really is for lightning and i; /archives//html/CQ-Contest/1996-05/msg00033.html (14,950 bytes)
52. More Amp Summary (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Sat May 11 14:15:26 1996; Ameritron sells Eimac tubes and other component parts direct to customers. Since they buy direct from manufacturers, prices are sometimes more reasonable. Anyone building or repairing an amp should c; /archives//html/CQ-Contest/1996-05/msg00049.html (6,542 bytes)
53. ICOM 706 driving amp? (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Mon May 20 13:27:23 1996; Spike: The cure for any radio is to inject a constant voltage ALC into the radio that ALMOST limits the power to the exact value required. Then the radio does not have to pull the ALC up from zero. K; /archives//html/CQ-Contest/1996-05/msg00084.html (8,084 bytes)
54. On removing CW (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Fri May 24 13:58:44 1996; While that was a good technical reason, the issue runs deeper than that. And yes, Amateur equipment sales are generally down....no question about that. All that in spite of no code! I wonder how many; /archives//html/CQ-Contest/1996-05/msg00118.html (6,967 bytes)
55. testing Q&A (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Mon May 27 23:07:51 1996; In 1966 the study guides contained the general overview of the questions, and a complete technical explaination of the answer. There is a large difference between that and having actual Q's and A's p; /archives//html/CQ-Contest/1996-05/msg00136.html (21,654 bytes)
56. QRN Squasher (June CQ article) (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed Jun 5 00:31:06 1996; Hi Henry, The circuit won't work correctly as published. The network in that unit (from T1 through R2) claimed to rotate phase will absolutely not do so. It will shift phase 180 degrees, and vary amp; /archives//html/CQ-Contest/1996-06/msg00018.html (16,527 bytes)
57. phase/fire (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu Jun 6 22:59:45 1996; That's not true. The circuit as published in CQ will absolutely NOT shift phase, since there are no components in series with the RF parth from T1 that shift phase. The circuit simply gives a choice; /archives//html/CQ-Contest/1996-06/msg00036.html (7,005 bytes)
58. Steve Mendelsohn's letter (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Mon Jun 24 15:47:38 1996; A look back at the recent past may put things in perspective. Eleven meters became a free for all band, and look at the huge plunge in activity that occurred on that band. The ARRL already tried no c; /archives//html/CQ-Contest/1996-06/msg00147.html (11,238 bytes)
59. Henry for president (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu Jun 27 14:22:22 1996; Nice letter Henry. Too bad someone with your mindset doesn't run for president of ...... (insert anything from the local club to the USA). 73 Tom; /archives//html/CQ-Contest/1996-06/msg00176.html (6,024 bytes)
60. Antenna article (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu Jul 25 10:46:55 1996; I've just read the most interesting antenna article I've ever read. August CQ, Antennas and Digital communications. I think everyone will enjoy this article, especially Kurt N. Sterba. I can't wait '; /archives//html/CQ-Contest/1996-07/msg00098.html (11,782 bytes)

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