More parts came in to finish off the electronic work in this Fisher 500c. The power supply was finished with the filter can caps being restuffed with new Nichicon PZ series caps, new bridge rectifier, and new diodes. The phono and preamp film caps were replaced with Sprague 715 orange drops. Previously, the coupling caps and grid resistors were replaced, and cathode resistors added for bias testing. One of the power tubes is drawing high current and it was planned to replace the outputs if necessary. A matched quad of 7591 power tubes will be needed. Ran the amp up on a variac and played for hours. Next, on to cosmetics. The chassis will be cleaned and polished along with the faceplate and input connections. Here are a few shots of the time consuming can restuffing and finished underside of the amp.
