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21. [AMPS] WTB FILAMENT TRANSFORMER (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Mon, 22 Jan 2001 11:54:39 -0800; Got a grudge to settle with someone ? 73s -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps; /archives//html/Amps/2001-01/msg00561.html (6,898 bytes)
22. [AMPS] Rejuvenating an old GDO (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Sat, 27 Jan 2001 09:38:54 -0800; Hi Gang I have recently obtained a 60s vintage Measurements Mdl 52 Grid Dip Oscillator. It is built like a tank and in excellent condition. It can oscillate frpm -- FAQ on WWW: http://www.contesting.; /archives//html/Amps/2001-01/msg00652.html (6,905 bytes)
23. [AMPS] Rejuvenating an old GDO (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Sat, 27 Jan 2001 10:03:14 -0800; Hi Gang I recently obtained a 60s vintage Measurements Mdl 52 Grid Dip Oscillator. It's built like a tank and in excellent condition. It operational range is from 2.5 to 420 Mhz. It produces a solid; /archives//html/Amps/2001-01/msg00653.html (7,650 bytes)
24. [AMPS] High Power on 70cm - Possible? (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Sun, 28 Jan 2001 14:54:22 -0800; Point of clarification. The 3CX-800A7 has maximum rated operating frequency of 350 Mhz. This tube is not suitable for use at 432 MHz. K1FO uses the Eimac 3cPx-800A7 for his equipment above 220Mhz. St; /archives//html/Amps/2001-01/msg00666.html (8,034 bytes)
25. [AMPS] looking for diagram GS-31b/35b or double GI7b forHF and 6m (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Sun, 10 Dec 2000 07:13:30 -0800; Hi John In response to your request for info on VHF Amps here are some urls to checkout. ND2X has put together a page that has compiled a great deal of operational data on the GS-35b. http://www.nd2x; /archives//html/Amps/2000-12/msg00178.html (7,631 bytes)
26. [AMPS] Alpha (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Thu, 28 Dec 2000 19:57:22 -0800; You're pretty close Paul. The fact of the matter is that most hams are too rich and too lazy to attempt to build their own amp. While the first such undertaking would not be done from a point of econ; /archives//html/Amps/2000-12/msg00338.html (7,826 bytes)
27. [AMPS] Alpha (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Fri, 29 Dec 2000 10:59:11 -0800; Judging from the rhetorical nature of your questions it's pretty clear that you are not looking for an answer. So for the benefit of everyone on the list to which you cc ed. No I don't build my own c; /archives//html/Amps/2000-12/msg00351.html (10,288 bytes)
28. [AMPS] Alpha (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Fri, 29 Dec 2000 11:47:06 -0800; Oh No Here we go again! Let the record show Tom Rauch started this one K1TA -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@co; /archives//html/Amps/2000-12/msg00352.html (8,519 bytes)
29. [AMPS] Alpha (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Fri, 29 Dec 2000 17:06:38 -0800; Before I respond to your post a personal anecdote is in order. Way back when I was in High School when the option of electives came up I selected Electricity-Electronics. In the school district I was; /archives//html/Amps/2000-12/msg00361.html (10,875 bytes)
30. [AMPS] Diodes-Is this boring or what? (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Thu, 23 Nov 2000 20:31:48 -0800; Rich....Boring isn't the word for it. Gimminee f#$%ing Christmas Are you guys for real? Do you have any ideas what 1N5408s cost when bought in quantity? One year ago I purchased 2 bags of 100 1N5408s; /archives//html/Amps/2000-11/msg00000.html (7,318 bytes)
31. [AMPS] 4CX-800s vs 4CX1600s (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Mon, 27 Nov 2000 08:08:44 -0800; Greetings Steve and Group Here are my observations on the 800 vs 1600 issue. First the plate dissipation number speaks to one factor, the ability of the anode cooler to dissipate excess heat at a rat; /archives//html/Amps/2000-11/msg00001.html (8,078 bytes)
32. [AMPS] Manometer (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Mon, 06 Mar 2000 20:43:02 -0800; Ok Gang Here is a practical question. I'm building an amp and have the tube, socket, chimney and blower. I'm interested in testing the the airflow of the system and have seen a couple of write ups on; /archives//html/Amps/2000-03/msg00328.html (7,566 bytes)
33. [AMPS] Power Handling of Resistors (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Mon, 06 Mar 2000 21:56:23 -0800; Comparing the instanteous power handling capabilities of a resistor by using a cw dit to simulate a parasitic oscillation is specious at best! And cw dit however short it may seem to some still more; /archives//html/Amps/2000-03/msg00332.html (8,661 bytes)
34. [AMPS] differences between 4-1000 sockets (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Tue, 07 Mar 2000 17:37:06 -0800; opening to > further improve airflow I guess one could call that Amp the: 4-1000 A Hemi Bob K1TA -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative; /archives//html/Amps/2000-03/msg00417.html (6,797 bytes)
35. [AMPS] Receiver Performance (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Mon, 13 Mar 2000 18:18:09 -0800; Hey Carsten forget that receiver stuff it's off on a tangent and doesn't belong here. What we want to know is how the YC-156 project is coming ? -- FAQ on WWW: http://www.contesting.com/ampsfaq.html; /archives//html/Amps/2000-03/msg00645.html (8,993 bytes)
36. [AMPS] Tetrode Output (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Tue, 14 Mar 2000 18:18:05 -0800; Hi Rich and List Here is one I can sink my teeth into. Rich some of your comments regard the Grid Driven Tetrode design lead to some confusion on my part. Let me reference your specific comments Firs; /archives//html/Amps/2000-03/msg00685.html (8,730 bytes)
37. [AMPS] Heavy Iron: 10-4 Good Buddy (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Tue, 21 Mar 2000 09:50:29 -0800; Lane You can take the "Good Buddy" crack many different ways. Parrallelling tubes increases IMD products as well as output capability. One there is no rule written in stone on this matter but up unti; /archives//html/Amps/2000-03/msg00864.html (7,646 bytes)
38. [AMPS] Heavy Iron%3 (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Wed, 22 Mar 2000 07:56:29 -0800; IMD increases because there is no such thing as 2 perfectly matched tubes. Uneven load sharing no matter how small will increase IMD. The higher the number of tubes and the greater the mismatch the h; /archives//html/Amps/2000-03/msg00902.html (6,898 bytes)
39. [AMPS] Irep ofPower Supply Diodes (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Thu, 03 Feb 2000 21:03:21 -0800; That depends on the filtering network they are supplying. For a choke input the answer is yes. But the answer for a capacitor bank input the answer is not so clear. The only time a diode conducts is; /archives//html/Amps/2000-02/msg00067.html (8,230 bytes)
40. [AMPS] Re: Adios (score: 1): Author: k1ta@contesting.com (Bob Marston); Date: Wed, 09 Feb 2000 22:37:01 -0800; Fred It was Mr Schmitt that initiated this spitball fight. 73s and pass the straws :) K1TA -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative reques; /archives//html/Amps/2000-02/msg00166.html (7,375 bytes)

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