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Total 4 documents matching your query.

1. [AMPS] Input Z (score: 1): Author: n2bc@stny.rr.com (Bill Coleman); Date: Sun, 27 Feb 2000 20:26:22 -0000; How do I determine / where can look up the input impedance for grid driven tetrodes? I'm not satisfied with the input circuit I have in there now and want to give it another try. THX, Bill N2BC -- FA; /archives//html/Amps/2000-02/msg00613.html (6,868 bytes)
2. [AMPS] Input Z (score: 1): Author: 2@vc.net (measures); Date: Sun, 27 Feb 2000 16:20:17 -0700; In Class AB1, input Z is essentially the reactance of the grid-C plus the grid-termination resistance. The practical choices of grid term. R are 12.5-ohms (4:1 bifilar transformer), 50-ohms (direct); /archives//html/Amps/2000-02/msg00614.html (7,078 bytes)
3. [AMPS] Input Z (score: 1): Author: n2bc@stny.rr.com (Bill Coleman); Date: Mon, 28 Feb 2000 00:41:39 -0000; Thanks Rich. Here's where I display my stupidity... I was going to avoid a swamping R type of input circuit. But I suppose for a sand-state exciter the swamping R presents a more stable load - is thi; /archives//html/Amps/2000-02/msg00620.html (7,664 bytes)
4. [AMPS] Input Z (score: 1): Author: 2@vc.net (measures); Date: Sun, 27 Feb 2000 20:54:41 -0700; Quite true, Bill. The grid is virtually an open circuit, so the exciter needs a termination to keep it from shutting down. Provided that it is installed very close to the grid, the grid-term. R also; /archives//html/Amps/2000-02/msg00622.html (8,723 bytes)

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