I'm a newbie to this forum. I just finished a successful build of an old 5E3 tube amp, now I've taken on my nephews Marshall Mosfet 100 amp repair. I got a schematic off the web. All the voltages appear correct. I followed the signal path to the power amp stage, which begins with a couple of A06 transistors. The transistors in the pwr amp stage seem to pass the simple transistor test. Is there a way to test the power output transisitors? Any ideas on how to find why the signal disappears in this part of the curcuit. Thanks for any help.
schematic http://www.drtube.com/schematics/marshall/3210-iss7.gif
schematic http://www.drtube.com/schematics/marshall/3210-iss7.gif