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21. Re: [Amps] Vacuum Relay (score: 1): Author: "Paul" <w8aef@q.com>; Date: Wed, 12 Dec 2012 22:46:14 -0700; When transmitting a series of dots, QSK, if you have relay timing issues you will observe ramps on the top and bottom of the waveform instead of a flat top and bottom rectangle. This is a result of t; /archives//html/Amps/2012-12/msg00066.html (10,587 bytes)
22. Re: [Amps] Alpha 86 Plate RFC (score: 1): Author: "Paul" <w8aef@q.com>; Date: Tue, 29 Jan 2013 08:58:27 -0700; I found my RFC fabrication note: Built the choke, fabricated a delrin cam attached to the Alphas bandswitch shaft that would operate a microswitch that in turn operates a relay to switch the 2nd sect; /archives//html/Amps/2013-01/msg00174.html (8,020 bytes)
23. Re: [Amps] Chimney Material (score: 1): Author: "Paul" <w8aef@q.com>; Date: Fri, 1 Mar 2013 09:40:59 -0700; Commercial grade Silicone. I purchased .125" x 12.00" x 12.00" several years ago from Rubber SheetRoll, Shippensburg, PA http://www.rubbersheetroll.com/silicone_rubber.htm When glueing you do have to; /archives//html/Amps/2013-03/msg00012.html (7,693 bytes)
24. Re: [Amps] What Old Amp to Buy? (score: 1): Author: "Paul" <w8aef@q.com>; Date: Tue, 12 Mar 2013 09:12:18 -0700; Exactly what I did. I obtained a 2 tube Alpha 76A, converted it to QSK and 3CX800A7's and installed an RFC-3 rf choke to allow WARC band coverage. Since then a friend of mine passed away and I wound; /archives//html/Amps/2013-03/msg00187.html (8,412 bytes)
25. [Amps] Motorola transistors (score: 1): Author: "Paul" <w8aef@q.com>; Date: Tue, 30 Apr 2013 16:12:31 -0700; Advanced Semiconductor continues to make most Motorola, Philips, and SGS Thompson RF transistors. http://www.advancedsemiconductor.com/index.html de Paul, W8AEF ZF2JI/ZF2TA 8Q7AA FO8DX/FO0PLA XZ0A VU; /archives//html/Amps/2013-05/msg00010.html (7,054 bytes)
26. Re: [Amps] Motorola transistors (score: 1): Author: "Paul" <w8aef@q.com>; Date: Thu, 2 May 2013 11:55:39 -0700; I have not purchased from Advanced Semiconductor however if faced with purchasing a $150 part and junking a $2000 amplifier the choice is easy. de Paul, W8AEF Have you ever tried buying from them as; /archives//html/Amps/2013-05/msg00045.html (7,657 bytes)

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