In Reply to: RE: apparently amplifier tests conducted by the military posted by Paul Joppa on March 18, 2015 at 18:49:54:
That does sound like a plausible explanation. I checked the HK A500 that happens to be on my bench at the moment, but was unable to detect any sign of this phenomenon. Maybe the relatively low Z of the voltage doubler and the bandwidth of the OPTs are factors. I'd like to find an amplifier that does this so I can confirm for myself that the cause lies with NFB functionality.
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Follow Ups
- My current "Unit Under Test" doesn't do this - Triode_Kingdom 10:29:23 03/19/15 (2)
- RE: My current "Unit Under Test" doesn't do this - Paul Joppa 15:18:44 03/19/15 (1)
- RE: My current "Unit Under Test" doesn't do this - Triode_Kingdom 13:34:54 03/21/15 (0)