Summary

VR22 triode. Probable manufacturer: A. C. Cossor Ltd., England. Manufactured for: British Air Ministry.
Medium mu small power output triode.
VR22 was the British Air Ministry designator for the Cossor type 220PA. The additional type designator 10E/7958 was the British military stores code for this valve; by 1942 the different codes used by the British services were brought together by the 'Common Valve' or CV system when this valve became the CV1022.
2 volt directly heated cathode.

Physical Description

Conical glass bulb on 4 pin European style base.

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