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1. [AMPS] a few questions... (score: 1): Author: mays@indigo.ucdavis.edu (Skip); Date: Mon, 7 Jul 1997 08:43:41 -0700 (PDT); Regarding the SB-220 questions and answers that have been posted here... There was a method to measure the Z of a transformer by shorting the secondary leads and measuring the current in the primary; /archives//html/Amps/1997-07/msg00019.html (9,050 bytes)
2. [AMPS] a few questions... (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 7 Jul 97 11:28:43 -0700; ...snip... - Tubes with good vacuums do not appear to have this problem. I typically use a 100k ohm, 0.5w resistor to develop cutoff bias. The typical V drop is about 22v during receive. This means t; /archives//html/Amps/1997-07/msg00021.html (7,434 bytes)
3. [AMPS] a few questions... (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Tue, 8 Jul 1997 09:38:50 +0000; To: <amps@contesting.com> It is probably a valid method of estimating transformer ESR, but you have to be VERY careful since leakage reactance will cause voltage and current to be out-of-phase. That; /archives//html/Amps/1997-07/msg00029.html (8,996 bytes)

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