The Colossus Rebuild Project by Tony Sale

Colossus Reborn

The rear of the Thyratron Rack

This shows at the top of the picture one of the large transformers supplying 6.3 volts at lots of amps to the ring control panels.

This page was originally created by the late Tony Sale, the original curator of the Bletchley Park Museum, and Secretary of the Bletchley Park Heritage Society.