Second up, the filter card. Here we got some caps and transistors. As I read the service manual the ones marked 58 A763 WL4B correspond to Tr504 and Tr503 in the schematics. The ones marked 5J1 correspond to Tr502 and Tr501. The caps, C509 and C510 in the schematics, are marked H7536L and 100µF 6.3V. I plan to replace the caps but what about the transistors, keep them? Any suggestion for replacement parts?