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1. [AMPS] New AMP Pix (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Wed, 01 Dec 1999 06:31:37 -0700; Tom, W4TH, has submitted a photo of an amp constructed by R.C. Evans, KA4USB. At the usual place: http://207.108.137.61 Enjoy! Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv -- FAQ on WWW: h; /archives//html/Amps/1999-12/msg00001.html (7,403 bytes)
2. [AMPS] New AMP Pix (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 10 Dec 1999 10:38:50 -0700; Lee, NT6D, has sent in a few shots of his 2 x 8877 amp. At the usual place: http://207.108.137.61 Enjoy! 73, Larry - W7IUV w7iuv@arrl.net -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submiss; /archives//html/Amps/1999-12/msg00090.html (7,322 bytes)
3. [AMPS] New AMP Pix (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 10 Dec 1999 23:35:45 +0000; Rich, Even building a single 8877 has always puzzeled me. But then, each to his own..... 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp pix at http://207.108.137.61 -- FAQ on WWW: ht; /archives//html/Amps/1999-12/msg00097.html (8,116 bytes)
4. [AMPS] New AMP Pix (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 10 Dec 1999 23:36:34 +0000; Phil, I did have another problem with the server a week or so ago, but fixed that. This error has been reported a couple times before, but I can't seem to duplicate it. On the other hand, this pix pa; /archives//html/Amps/1999-12/msg00098.html (8,658 bytes)
5. [AMPS] "Pulser" speed and Tune Up (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Mon, 01 Nov 1999 23:58:09 +0000; I learned that the RF Applications VFD RF Power meter has a very good peak detector/hold circuit! It's on my list for Santa Claus. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp pix; /archives//html/Amps/1999-11/msg00047.html (7,529 bytes)
6. [AMPS] Whither the 807? (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 02 Nov 1999 04:33:18 +0000; Yes I have. Being a bit under-age at the time, I was forced to wait on most of the emptys from my Dad. That was OK as he could empty them a whole bunch faster then I could solder them. Soldering thos; /archives//html/Amps/1999-11/msg00066.html (9,291 bytes)
7. [AMPS] More PIX (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Thu, 04 Nov 1999 23:08:33 +0000; Hmmm. I sent this out earlier, but it doesn't seem to have made it to the list. Gerard, VE5FF, has contributed some photos of his 4CX3000A/8169 amp for our collection. You can see them at the usuall; /archives//html/Amps/1999-11/msg00161.html (7,639 bytes)
8. [AMPS] More PIX (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 05 Nov 1999 00:53:46 +0000; Hmmm. I sent this out earlier, but it doesn't seem to have made it to the list. Gerard, VE5FF, has contributed some photos of his 4CX3000A/8169 amp for our collection. You can see them at the usuall; /archives//html/Amps/1999-11/msg00162.html (7,633 bytes)
9. [AMPS] Re: swr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 01 Oct 1999 22:40:05 +0100; Rich, glad you said it so I didn't have to. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp pix at http://207.108.137.61 -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissi; /archives//html/Amps/1999-10/msg00032.html (8,744 bytes)
10. [AMPS] Re: swr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 01 Oct 1999 22:43:43 +0100; Nope. The center on a standard Smith Chart is 1.0 ohms. You are either outa school too long or never knew it to begin with. Remember the little part about normalization? 50 ohms is neither sacred nor; /archives//html/Amps/1999-10/msg00033.html (8,867 bytes)
11. R: [AMPS] Re: swr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sat, 02 Oct 1999 20:29:11 +0100; Mauri, I stated "standard Smith Chart". Of course there exist "custom" prints for those who are either to lazy for or incapable of the normalization process. Actually, like most of the heated discuss; /archives//html/Amps/1999-10/msg00052.html (9,536 bytes)
12. [AMPS] 813 question (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sun, 03 Oct 1999 19:32:12 +0100; A single 813 running in TCGG has an effective cathode input impedance of 270 ohms at any reasonable anode voltage. Two would be 135 ohms, four would be about 67 ohms. Go ahead, put in the pi-net. Do; /archives//html/Amps/1999-10/msg00070.html (7,782 bytes)
13. [AMPS] Re: Filament Xfmr. (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sun, 03 Oct 1999 19:37:33 +0100; I use a small filament transformer with a secondary center tap. Connect the secondary across the big transformer secondary. Leave the primary open. Use the small transformer secondary center tap for; /archives//html/Amps/1999-10/msg00071.html (9,096 bytes)
14. [AMPS] Re: Filament Xfmr. (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Mon, 04 Oct 1999 22:47:03 +0100; Well, Pat, I don't want them. It was someone else who posted the original question. A tube with handles is the proper way to go about producing illegal power! That is, if someone were so inclined. Ha; /archives//html/Amps/1999-10/msg00159.html (8,445 bytes)
15. [AMPS] Re: swr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Mon, 04 Oct 1999 22:59:26 +0100; If I didn't pick at you, someone who is less charitable would. Most engineers I know don't assume 50 ohms since the military contract jobs went away. I bet the cable plants turn out more 75 ohm coax; /archives//html/Amps/1999-10/msg00160.html (9,204 bytes)
16. [AMPS] Henry 2K-3 (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Mon, 04 Oct 1999 23:17:41 +0100; I would use it in a heartbeat, Martin. As long as it will physically fit that is. Ripple current in well designed choke input power supply is pretty much a "don't care". It's not at all like a cap in; /archives//html/Amps/1999-10/msg00161.html (8,094 bytes)
17. [AMPS] The things you see Homebrew Amplifiers (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 05 Oct 1999 23:15:32 +0100; Hi Bill, the following observations are based on using a similar GG 4-400 amp for about 30 years: No problem, works fine with adequate side cooling. This works fine as long as plenty of air is moving; /archives//html/Amps/1999-10/msg00211.html (9,890 bytes)
18. [AMPS] The things you see Homebrew Amplifiers (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Wed, 06 Oct 1999 23:10:44 +0100; Sounds to me like you already made up your mind that it's no good. Why did you buy it? Why did you ask if it was OK if you already believed it was not. It also sounds to me like you have never run a; /archives//html/Amps/1999-10/msg00246.html (12,730 bytes)
19. [AMPS] Contest station descriptions Was: [TowerTalk] C3vs tennadyne (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Thu, 07 Oct 1999 22:30:23 +0100; Sounds like a good thing, Pete. I don't care much about contests, but am interested in top performing stations. Good luck with the effort. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv; /archives//html/Amps/1999-10/msg00262.html (8,759 bytes)
20. [AMPS] Hold on - SWR meter placement (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Thu, 07 Oct 1999 23:27:23 +0100; Jon, I have to second that motion. I recall reading the text in question. I don't remember much about it, except that I questioned it's application in the real "real world". I should dig that out and; /archives//html/Amps/1999-10/msg00263.html (9,733 bytes)

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