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21. [Amps] Speaking of Palomar (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Thu Mar 13 11:56:56 2003; Steve: I have also built several amplifiers based on the "Granberg" doctrine, and my results agree very well with yours. I have tried a number of bias schemes ranging from dirt-simple to over-the-top; /archives//html/Amps/2003-03/msg00528.html (9,222 bytes)
22. [Amps] 3KV switching power supply (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Thu Mar 13 12:24:01 2003; Doug: Thanks for the recon on this one. I went to the website and checked it out. From the specs, it is pretty certain that this supply does not use a standard switcher topology. I sent a request to; /archives//html/Amps/2003-03/msg00530.html (7,735 bytes)
23. [Amps] Gamma Match Capacitors (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Sun Mar 16 17:06:19 2003; I have just finished a short article on both the technical and practical aspects of designing and building gamma match capacitors, particularly for Yagi's. I have attempted to reduce all of the neces; /archives//html/Amps/2003-03/msg00607.html (6,517 bytes)
24. [Amps] PSA2500 Power Supply (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Mon Mar 17 11:22:19 2003; Recently we all heard about a new HV supply for KW amps, being sold by Watts Unlimited. As promised, I contacted them for some inside info, and they were very open and co-operative. (More and more I; /archives//html/Amps/2003-03/msg00634.html (8,681 bytes)
25. [Amps] AC circuit analysis (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Mon Mar 17 11:53:54 2003; Dave: Your assumption that we all assume steady-state,sinusoidal variables in AC circuits is simply not true, and I don't see why you bothered to launch the tirade about it. Those of us who do circui; /archives//html/Amps/2003-03/msg00638.html (7,604 bytes)
26. [Amps] Silly idea? (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Tue Mar 18 10:00:34 2003; Rich: This is meant not as a challenge to your answer, but as a request for more info . What is a current-limiting transformer design? Making it higher R would certainly do the job, but then the norm; /archives//html/Amps/2003-03/msg00669.html (7,891 bytes)
27. [Amps] Re: Filament Current Limiting (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Tue Mar 18 13:39:24 2003; Rich: Well, I did a little quick research on the subject (which admittedly has not crossed my radar screen before) and I must say that you are pretty much right on the money. This issue contains a mi; /archives//html/Amps/2003-03/msg00682.html (8,818 bytes)
28. [Amps] Current Limiting Filaments (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Fri Mar 21 19:49:21 2003; This is an epilog to the recent discussion of filament inrush current reduction by means of controlled flux leakage in the filament transformer. I attempted to show in my comments that this was a via; /archives//html/Amps/2003-03/msg00764.html (8,881 bytes)
29. [Amps] Re: COLLINS Engineering (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Sun Mar 23 12:03:17 2003; Ian: I agree with you 110% about Collins/Rockwell technology. That particularl era/group of engineers really set the benchmarks. If you read through any of their publications (of which there are, sad; /archives//html/Amps/2003-03/msg00792.html (7,830 bytes)
30. [Amps] Filament Inrush Control (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Tue Mar 25 20:05:10 2003; G'day Alek: Actually, I have always been a fan and practicioner of step-starting. It is a very cheap and easy method, and I have even managed on occassion to carry it to ridiculous extremes (in the n; /archives//html/Amps/2003-03/msg00825.html (8,361 bytes)
31. [Amps] Resonant Choke Filters (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Thu Mar 27 13:23:04 2003; I have never (yet) actually built one of these power supplies. However, the various comments I have read here over the last year have really piqued my interest, so I decided to do some analysis of po; /archives//html/Amps/2003-03/msg00878.html (10,710 bytes)
32. [Amps] National R-175 Choke (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Fri Mar 28 12:43:54 2003; Recently someone posted a request for help on analyzing this famous plate choke for possible resonances, but I can't find the original post (I don't keep old mail for long). This morning, I found one; /archives//html/Amps/2003-03/msg00910.html (7,265 bytes)
33. [Amps] Filament Inrush Control (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Sat Mar 29 10:11:16 2003; Phil: Sounds like an excellent strategy to me. Eric K8LV; /archives//html/Amps/2003-03/msg00922.html (7,436 bytes)
34. [Amps] The National R-175A (score: 1): Author: RFlabnotes at aol.com (RFlabnotes@aol.com); Date: Sat Mar 29 10:50:37 2003; I guess this choke has quite a wide following. Well, it deserves it. As far as I can see, it was the first commercial product that was broadband enough for ham service. I just happened to stumble acr; /archives//html/Amps/2003-03/msg00924.html (8,360 bytes)
35. [Amps] Fwd: Plate choke design (score: 1): Author: RFlabnotes@aol.com; Date: Fri, 17 Oct 2003 10:41:38 EDT; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2003-10/msg00154.html (6,374 bytes)
36. [Amps] Fwd: Plate choke design (score: 1): Author: RFlabnotes@aol.com; Date: Sat, 18 Oct 2003 16:39:12 EDT; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2003-10/msg00170.html (6,538 bytes)
37. [Amps] 30L1 Tuning (score: 1): Author: RFlabnotes@aol.com; Date: Sun, 2 Nov 2003 12:48:26 EST; I have an old 30L1, which has been in and out of use here for some time. It has also been the cite of several interesting ( and not always successful!) enhancements. I found it quite easy to modify t; /archives//html/Amps/2003-11/msg00019.html (7,020 bytes)
38. [Amps] New source for Mini KW Coax (score: 1): Author: RFlabnotes@aol.com; Date: Thu, 13 Nov 2003 15:29:09 EST; I recently came up with a useful trick for dealing with a problem that has troubled me and other homebrewers for years, so I though I would pass it on to the universe. While installing some wiring in; /archives//html/Amps/2003-11/msg00171.html (7,931 bytes)
39. [Amps] HP vector Voltmeter info (score: 1): Author: RFlabnotes@aol.com; Date: Sun, 11 Jan 2004 18:17:38 EST; I am urgently looking for data on an accessory that came with the HP 8405A Vector Voltmeter. It is the 10216A probe isolator and I am offering a small reward for info on what it really is (no help in; /archives//html/Amps/2004-01/msg00127.html (6,674 bytes)
40. Re: [Amps] RF Power Capacitors (score: 1): Author: RFlabnotes@aol.com; Date: Mon, 12 Jan 2004 19:39:42 EST; Hal: Ebay is full of ads for those grey russian high-power ceramics at good prices. I have tested some of them for RF current capacity and they are excellent. I will be glad to forward you or anyone; /archives//html/Amps/2004-01/msg00132.html (6,869 bytes)

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