Summary

Mercury vapour rectifier. A pair of these valves used in a full wave circuit can produce over 3000 V at 0.5 A.

The identity of the manufacturer is revealed by the excise mark 2 over 4, this was the code allocated to the Philips Camperdown (Sydney) factory. Radiotron was the brand used by AWV.

Manufactured by Philips, Sydney, Australia.
Manufactured for AWV, Sydney, Australia.

2.5 V directly heated cathode.

Physical Description

Large shouldered glass bulb with top cap and four pin UX style base.

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