Summary

High voltage rectifier diode. 4 volt directly heated cathode.
CV Code WE indicates May 1965 and code F indicates the manufacturer was STC Paignton works. Equivalent to the Brimar R11.
Manufacturer: STC, Paignton, England

Physical Description

Shouldered glass bulb on 4 pin European style base. Getter has turned white die to crack in bulb.

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