Jump to content


AC4AQ

Member Since 01 Oct 2012
Offline Last Active Apr 17 2014 11:14 AM
-----

Posts I've Made

In Topic: What's Z1 in a MA5002VZ?

17 April 2014 - 11:15 AM

Thanks, Alain,for your response.

   Ultimately the problem was C524: Among the original faults in this amplifier was leakage in C524, I substituted a 270 pF, 400 WVDC cap and this was a mistake. The extra 70 pF was enough to introduce an instability, though what mode I haven't and needn't determine.

   Now I need to figure why I now have a 185 mVDC offset in one channel, in Stereo mode only...