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1. [Amps] Input Impedance of GI-7BT Triode (score: 1): Author: "K7ZS" <k7zs@earthlink.net>; Date: Sat, 13 Sep 2003 09:38:44 -0700; I have recently completed converting an MLA-2500B to use the GI-7BT Triodes. Thanks to a lot of hand holding by Lawson, W4EMF! Now, I am building WD7S's great little TU-7B tuned input board to allow; /archives//html/Amps/2003-09/msg00114.html (7,228 bytes)
2. Re: [Amps] Input Impedance of GI-7BT Triode (score: 1): Author: "Mike Tubby" <mike.tubby@thorcom.co.uk>; Date: Sun, 14 Sep 2003 08:55:34 +0100; The easiest thing to do would be: a) to guess b) take it to a friendly RF engineer who has a network analyser Triodes. auto-tuner. _______________________________________________ Amps mailing list Am; /archives//html/Amps/2003-09/msg00118.html (7,904 bytes)
3. Re: [Amps] Input Impedance of GI-7BT Triode (score: 1): Author: Steve Thompson <g8gsq@qsl.net>; Date: Sun, 14 Sep 2003 16:05:12 +0100; A network analyser won't help without some messing, the measurement needs to be done at full drive level. You can feed the amp through a ATU, tune for best match, then put 50 ohms on the transmitter; /archives//html/Amps/2003-09/msg00123.html (9,278 bytes)

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