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1. [AMPS] Unconditional stability (score: 1): Author: Carl Clawson" <ws7l@arrl.net (Carl Clawson); Date: Thu, 9 Mar 2000 20:01:02 -0800; I've heard this phrase several times on the reflector in recent days. Could we please stop claiming that our amps are "unconditionally stable?" I suspect that few if any of us have ever measured the; /archives//html/Amps/2000-03/msg00515.html (7,529 bytes)
2. [AMPS] Unconditional stability (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 22:46:11 -0600; Carl, The amps we are dealing with here are Class AB devices and as such are "pseudo-linear." S-Parameters are not valid for anything other than Class A. Just using your own words. 73, Jon KE9NA -- J; /archives//html/Amps/2000-03/msg00518.html (7,818 bytes)
3. [AMPS] Unconditional stability (score: 1): Author: Carl Clawson" <ws7l@arrl.net (Carl Clawson); Date: Thu, 9 Mar 2000 21:03:25 -0800; Hoist by my own petard, as it were! Actually AB amps, thought of as "black boxes" with two ports, are as reasonably linear as any other amplifier, at least at the design frequency. It's the internal; /archives//html/Amps/2000-03/msg00520.html (7,629 bytes)
4. [AMPS] Unconditional stability (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 23:55:12 -0600; back! :-) True. But how would go about measuring S-parameters on a large signal device? I suppose you could use a large signal Z-analyzer and then do a transformation to S-parameters........ Back in; /archives//html/Amps/2000-03/msg00522.html (8,435 bytes)

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