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21. [Amps] Bias Zener Diodes In Parallel ? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 16 Jul 2002 19:19:41 -0700; Hi Doug, If you need an adjustable bias, you might consider a TL431 (good to 36V without additional parts) in conjunction with an appropriately heatsinked PNP power transistor (See either the Nationa; /archives//html/Amps/2002-07/msg00235.html (9,791 bytes)
22. [Amps] 2.25 to 1 toroid winding information sources (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 21 Jul 2002 16:08:11 -0700; On Sun, 21 Jul 2002 11:53:32 -0700 skipp isaham <nospam4me@juno.com> writes: <snip> Hi Skipp, Take a look at chapter 7 of "Transmission Line Transformers" by Jerry Sevick, 2nd edition. ISBN 0-87259-2; /archives//html/Amps/2002-07/msg00387.html (7,515 bytes)
23. [Amps] Westinghouse WL-5736 (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 16 Jun 2002 20:49:53 -0700; Hi Jim, Here's a few numbers: 2.5KW max Plate dissipation 3.5KV max Plate V in Class B RF 1.75A max Plate I 60 MHz max. for full input 6V @ 60 A filament mu of 22 Hmmm.... sounds somewhat similar to; /archives//html/Amps/2002-06/msg00120.html (7,088 bytes)
24. [Amps] CTI follow up (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 25 Jun 2002 10:13:17 -0700; gas would what Hi Steve, The value varies with the tube type and the total current excursion but, typically fall in the range of 50-200 ohms. 73 & Good morning, Marv WC6W * __________________________; /archives//html/Amps/2002-06/msg00215.html (8,072 bytes)
25. [Amps] CTI follow up - miscellaneous ramblings (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 26 Jun 2002 08:16:06 -0700; 150 and screen-reg. Hi Rich & Steve, I would hope that before anyone starts wiring all those LED's, one would check the LED I/V curve and discover that a "regulator" of this design would exhibit some; /archives//html/Amps/2002-06/msg00230.html (9,513 bytes)
26. [Amps] Defibrulator Caps as Filter Caps (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 30 Jun 2002 10:03:17 -0700; On Sun, 30 Jun 2002 10:27:09 +1000 "David Smith" <vk3hz@wia.org.au> writes: Hi David, Maxwell manufactures both pulse discharge and continuous rated filter capacitors. The type is usually marked on t; /archives//html/Amps/2002-06/msg00283.html (9,605 bytes)
27. [Amps] Tube question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 23 May 2002 12:20:25 -0700; Hi Peter, The Y suffix commonly indicates a base composed of special intermediate loss material. And in case you run across any, an X suffix indicates a special low loss base material. 73, Marv WC6W; /archives//html/Amps/2002-05/msg00398.html (7,061 bytes)
28. [Amps] IMD vs. Vcc (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 1 Apr 2002 20:56:04 -0800; On Mon, 1 Apr 2002 13:48:16 -0800 "Terry Gaiser" <w6ru@bak.rr.com> writes: Hi Terry, The bandwidth specs are in part 2 of CFR 47. The test specifications are also in the same part. 73 & Good evening,; /archives//html/Amps/2002-04/msg00049.html (8,718 bytes)
29. [Amps] 12V 120A Switcihng Power supply? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 1 Apr 2002 21:04:35 -0800; Hi Kenny, Here's a possibility... You can probably find a 5V 250A supply fairly easily. The output section of those is typically configured with a full wave rectifier. If you pull the stock rectifier; /archives//html/Amps/2002-04/msg00050.html (7,895 bytes)
30. [Amps] Amp project help needed (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 1 Apr 2002 20:52:57 -0800; On Sun, 31 Mar 2002 06:07:21 +0800 "Xu" <salers@hamal.freemail.ne.jp> writes: Hi Xu, Amidon is just a distributor. I believe that Fair-Rite is the manufacturer of their FT series parts. You may be ab; /archives//html/Amps/2002-04/msg00051.html (7,597 bytes)
31. [Amps] Air-dux 195-1 ??? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 3 Apr 2002 07:26:17 -0800; On Wed, 03 Apr 2002 02:49:49 +0100 Arthur Moe <kb7ww@easystreet.com> writes: Hi Art, I have both the original Illumitronic catalog and later B&W catalogs (when it was called a Pi-Dux) that list this; /archives//html/Amps/2002-04/msg00119.html (7,348 bytes)
32. [Amps] IMD vs. Vcc (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 3 Apr 2002 07:39:52 -0800; On Mon, 1 Apr 2002 21:56:31 -0800 "Terry Gaiser" <w6ru@bak.rr.com> writes: although <snip> Hi Terry, The radio lawyers changed those designators about... 8? years ago. So, A3J is now called J3E. 73 &; /archives//html/Amps/2002-04/msg00120.html (7,946 bytes)
33. [Amps] Re: [Amps] BirdR 43 Manual (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 3 Apr 2002 13:59:57 -0800; scale, and cheaper. much of Hi Peter, As long as you are going to the effort, just make it a dual op amp and add a peak reading mode. 73 & Good afternoon, Marv WC6W P.S. -- If I moused and clicked in; /archives//html/Amps/2002-04/msg00129.html (7,619 bytes)
34. [Amps] Bird 43 pk power circuit (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 3 Apr 2002 15:41:29 -0800; On Wed, 3 Apr 2002 16:42:34 -0600 "Phil Clements" <philk5pc@tyler.net> writes: Hi Phil, Silly (and that is as kind a word as I can use!) software!!!!!!! If I'm logged in it works.... but, if I'm not; /archives//html/Amps/2002-04/msg00133.html (7,053 bytes)
35. [Amps] Bird 43 pk power circuit -- 2nd link (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 3 Apr 2002 16:01:54 -0800; On Wed, 3 Apr 2002 16:42:34 -0600 "Phil Clements" <philk5pc@tyler.net> writes: Hi Phil, OK. This one seems to work. I had to convert it to JPG for Yahoo to... cooperate. http://photos.yahoo.com/bc/ma; /archives//html/Amps/2002-04/msg00134.html (7,337 bytes)
36. [Amps] How the Bird works (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 4 Apr 2002 07:23:56 -0800; Goooood morning everyone, I must admit I've not been following the Bird thread closely as it wanders... but, for those who are interested, there is an excellent explanation of the coupling mechanism; /archives//html/Amps/2002-04/msg00150.html (6,770 bytes)
37. [Amps] Directional coupler design (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 5 Apr 2002 19:32:01 -0800; On Fri, 5 Apr 2002 22:36:07 +0200 "Roger Blain" <rblain@iafrica.com> writes: interest. Hi Roger, I can't point to any references on the net but, if you found them they would say that (constant) imped; /archives//html/Amps/2002-04/msg00203.html (8,703 bytes)
38. [Amps] re:- Heath Kit SB220 Linear Amp - Unbuilt (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 10 Apr 2002 09:15:25 -0700; I like the $175 for packing/shipping!!! On Wed, 10 Apr 2002 00:03:11 -0700 skipp isaham <nospam4me@juno.com> writes:; /archives//html/Amps/2002-04/msg00288.html (7,829 bytes)
39. [Amps] Motorola HV rectifiers (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 12 Apr 2002 18:41:35 -0700; On Fri, 12 Apr 2002 22:56:38 +0100 "Conrad G0RUZ" <g0ruz@btinternet.com> writes: they substantial Hi Conrad, 5KV PIV 2.5A @ 40 degree C ambient. 250A single cycle surge and they have internal equaliz; /archives//html/Amps/2002-04/msg00336.html (7,740 bytes)
40. [Amps] FS: Bird Coax Switches & Coax connectors (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 27 Apr 2002 10:07:57 -0700; ** Bird Coax Switches ** Model 72-2 DPDT Coax switch w/N connectors -- $50 Model 74 SP6T Coax switch with N connectors -- $70 both of the above switches are complete with knob & dial plate ** Used Co; /archives//html/Amps/2002-04/msg00580.html (8,155 bytes)

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