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1. [Amps] 807 transmitter (score: 1): Author: "The Bowers" <thebowerz@comcast.net>; Date: Mon, 5 Feb 2007 11:56:02 -0800; Has anyone built "K5DH's 807 CW transmitter" (Google) ? I've built just the amp section but can't get it to load. I'm driving it with a sig gen at 3.9 KC. According to the on line calculators, L3 is; /archives//html/Amps/2007-02/msg00055.html (6,975 bytes)
2. Re: [Amps] 807 transmitter (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Mon, 5 Feb 2007 21:51:46 +0100; It appears that your tank coil inductance is too high. For an operating Q of 12 the tank circuit capacitance would be in the 180 - 200 pF range and the associated inductance in the 8.5 - 9 uH range (; /archives//html/Amps/2007-02/msg00056.html (8,528 bytes)
3. Re: [Amps] 807 transmitter (score: 1): Author: "Jim Tonne" <tonne@comcast.net>; Date: Mon, 5 Feb 2007 15:58:27 -0500; Karl-Arne: What is the power level involved? What is the plate voltage? - JimT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailma; /archives//html/Amps/2007-02/msg00057.html (9,971 bytes)
4. Re: [Amps] 807 transmitter (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 5 Feb 2007 18:54:18 -0500; Dana, There is a VERY wide range of tank Q's that will work just fine. People go way overboard fussing around to get a certain Q that is really just a wild approximation anyway and often wrong. The; /archives//html/Amps/2007-02/msg00064.html (9,892 bytes)

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