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21. Re: [Amps] More information for "What NOT to buy".. (score: 1): Author: "" <dcoffman@iquest.net>; Date: Tue, 24 Oct 2006 08:54:47 -0400; Robert, Can you elaborate on the L4 conversions? I guess I was unaware that the L-4 floated the grids. Also, the addition of the zener in the B- line. Do these modifications just provide additional s; /archives//html/Amps/2006-10/msg00267.html (11,905 bytes)
22. [Amps] QST Jan 06 (Off topic) (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Mon, 18 Dec 2006 16:15:31 -0500; All, This is off topic for this group, however what is the consensus of the 17 meter "Wonder Bar" antenna? good project for my QTH. I do have questions concerning tuning and spacing of the elements.; /archives//html/Amps/2006-12/msg00153.html (7,408 bytes)
23. Re: [Amps] QST Jan 06 (Off topic) (score: 1): Author: "Doug" <dcoffman@iquest.net>; Date: Mon, 18 Dec 2006 21:42:15 -0800; Robert, Your take on my operational status is fairly accurate. I am mechanical by nature and have a limited knowledge in the electronics arena. This is why I like to build antennas and work, (Limited; /archives//html/Amps/2006-12/msg00159.html (11,229 bytes)
24. Re: [Amps] QST Jan 06 (Off topic) (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Tue, 19 Dec 2006 08:34:15 -0500; Pete, Yes, this was discussed previously. I will do that. Doug Quoting Pete Smith <n4zr@contesting.com>: _______________________________________________ Amps mailing list Amps@contesting.com http://l; /archives//html/Amps/2006-12/msg00166.html (14,115 bytes)
25. Re: [Amps] Looking For Big Jugs (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Thu, 1 Mar 2007 10:15:20 -0500; Eddy, Your subject line will generate a great deal of interest. I thought this was more Porno spam! Hi Hi Good luck Doug Coffman N9XTF Quoting EP Swynar <gswynar@durham.net>: ________________________; /archives//html/Amps/2007-03/msg00003.html (7,670 bytes)
26. Re: [Amps] New Guy, Old 813 amp (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Thu, 26 Apr 2007 13:14:19 -0400; I cannot remember the company that makes it, but there is a small autotuner designed to be retrofitted into a 6M-HF amplifier that sells for $100.00 that would fit the bill. Regards, Doug - N9XTF Quo; /archives//html/Amps/2007-04/msg00320.html (10,159 bytes)
27. Re: [Amps] New Guy, Old 813 amp (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Thu, 26 Apr 2007 13:19:53 -0400; Here is the link, it is a product from LDG. http://www.ldgelectronics.com/products.php?cID=7&pID=2&v=1 73, Doug N9XTF Quoting k7fm <k7fm@teleport.com>: _______________________________________________; /archives//html/Amps/2007-04/msg00321.html (9,977 bytes)
28. Re: [Amps] Free Amp Parts (score: 1): Author: "Doug" <dcoffman@iquest.net>; Date: Mon, 11 Jun 2007 21:33:39 -0700; Bob, Do you still have the items or have you parted with them? Regards, Doug Coffman N9XTF Due to health problems it is likely that I will never build another Amp. This hurts but must be faced. I hav; /archives//html/Amps/2007-06/msg00074.html (7,422 bytes)
29. Re: [Amps] Winding large inductors (score: 1): Author: Doug <dcoffman@iquest.net>; Date: Wed, 21 Nov 2007 08:09:27 -0500; I use refrigeration tubing and have never had to use sand or any other medium to keep its shape. I have would .25" od tubing on a 1" form with no problem. 73 Doug N9XTF Quoting Harold Mandel <hmandel; /archives//html/Amps/2007-11/msg00301.html (11,117 bytes)

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