Hi everyone. I have read many useful threads here and decided to join because I need help. I have a Guild Quantum amp with the 8417 output tubes. Only the rectifier tube lights up. When I measure AC volts at the power transformer. I get 120 going in on the primary. Then the secondary I get 240v, 6.3v, 45v, and 0v going to the filaments. Also the filament windings measures 350ohms. Can anyone recommend a replacement transformer. Or what the correct voltage readings on the secondary should be? I will attach a schematic