Summary

DCG5/2500. high voltage mercury vapour rectifier. Made by Philips in Holland. Donated by 3KZ Radio Station - 64 Elizabeth Street, Melbourne in 1936. Used for high power supply in transmitters.
Half wave; filament 5 volts at 10 amps; anode peak inverse 12 kilovolts 2.5 amps; peak 500 ma average.

Physical Description

Spherical bulb with long cylindrical stem on base side and smaller spherical bulb on top, mounted on a display block with a similar valve (sectioned) ST 21491. Large Edison screw base and top cap with bakelite and knurled brass termainal Puddle of mercury visible. Coiled coil filament; graphite anode.

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