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Total 4 documents matching your query.

1. [AMPS] a question for the EXPERT (score: 1): Author: alfredo@cln.it (Alfredo Rosati I5UXJ); Date: Mon, 03 Dec 2001 23:57:54 +0100; in VHF Amplifier which is the best way to make the output: 1) Variable capacitor between Anode and antenna 2)Link with variable capacitor near the end of the line is there a difference in efficiency?; /archives//html/Amps/2001-12/msg00046.html (6,871 bytes)
2. [AMPS] a question for the EXPERT (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 3 Dec 2001 16:06:09 -0800; Assuming you mean a vacuum tube amp, on 50 MHz I usually use a pi-net with a small vacuum variable for plate tuning (2-30 pF, 10kV), 1/4" copper tubing for the inductor (typ 3t, about 1.5" inside dia; /archives//html/Amps/2001-12/msg00047.html (9,168 bytes)
3. [AMPS] a question for the EXPERT (score: 1): Author: g8gsq@qsl.net (Steve Thompson); Date: Tue, 4 Dec 2001 08:08:16 -0000; --Original Message-- From: Steve Katz <stevek@jmr.com> To: 'alfredo@cln.it' <alfredo@cln.it>; amps@contesting.com <amps@contesting.com> To: <amps@contesting.com> Date: 04 December 2001 00:14 Subject:; /archives//html/Amps/2001-12/msg00068.html (7,519 bytes)
4. Re: [AMPS] a question for the EXPERT (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Tue, 4 Dec 2001 11:23:18 +0100; n The most common output configuration for tube amplifiers, at least in the FM broadcast applications, is a tuned cavity with a shunt variable line (tune) and a series capacitor (load). This is quit; /archives//html/Amps/2001-12/msg00070.html (7,478 bytes)

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