Museum of the Broadcast Television Camera

Pye Mk4 PSU (power supply unit) front view

Pye Mk4 PSU (power supply unit) top view

The 7 large valves, type 6080, are twin power triodes used as the series regulators in the stabilizer. Metal selenium rectifiers were used, a worry for restoration. Cooled by twin fans.

The Pye transformers have a bit of a reputation for failure, another worry for restoration.

There are a lot of transformers and chokes, the PSU is heavy at 39Kg.