Update on the Sunfire Load Invariant Stereo amp:
I replaced all the caps in the amp minus the main filter caps. I replaced 2) 13v zener diodes, 2) 1N4004 diodes, 1) MJE2955T transistor, and 1) MJE3055T transistor.
Now it works and sounds great! Pairs great with the Sunfire tube pre amp. I would take pictures but they are too large to post 🤷
P.S. My amp is an early generation with an attached power cord and slightly different and simpler power supply design. No on/off/auto switch on the back either.