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1. [Amps] 400 watt Polyfet HF amplifier (score: 1): Author: John Lyles <jtml@losalamos.com>; Date: Thu, 18 Jan 2018 00:38:00 -0700; Polyfet has a 2014 technical bulletin on their website, TB239. It uses their LY942 LDMOS transistor to make a flat 2-30 MHz 400 watt linear amplifier with 20 dB gain, using 50 volt parts. Its a compa; /archives//html/Amps/2018-01/msg00082.html (7,026 bytes)
2. Re: [Amps] 400 watt Polyfet HF amplifier (score: 1): Author: Richard Solomon <dickw1ksz@gmail.com>; Date: Fri, 19 Jan 2018 08:55:54 -0700; Looks interesting. Is there a source for the PC Board ? 73, Dick, W1KSZ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi; /archives//html/Amps/2018-01/msg00085.html (7,773 bytes)
3. Re: [Amps] 400 watt Polyfet HF amplifier (score: 1): Author: Manfred Mornhinweg <manfred@ludens.cl>; Date: Fri, 19 Jan 2018 18:04:45 +0000; Hi John, Please allow me to throw a bucket (or at least a few cups) of cold water on that design: - According to the gain curves shown, that amplifier is pretty linear up to a PEP of roughly 300W at; /archives//html/Amps/2018-01/msg00091.html (11,127 bytes)

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