09-01-2024, 01:10 AM
(07-01-2024, 12:18 AM)LENINGRAD T2 Wrote: The main power supply is heavily corroded from the top. From the bottom, the chassis looks quite good. The sockets require re-riveting. Three 5U4 rectifiers have excellent emission. I obtained two voltages: 490V /correct/ from the larger transformer and 360V /should be 265V/ from the smaller one. The smaller transformer also provides two heater voltages of 5V and 6.3V, which are actually 10% higher.
Possibly when fully loaded the voltages will be closer to what is specified. Is the incoming mains voltage also within the tapping that is set on the transformers?
