Wireless valve, 7405A

Made:
1940
maker:
Mullard Radio Valve Company Limited

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Wireless valve, admiralty pattern 7405A made by the Mullard Radio Valve Company Limited, Mitcham in May 1940. Type NR16A. Tested at the H.M Signal School, Portsmouth.

Details

Category:
Acoustics
Object Number:
1947-224/56
type:
valve
credit:
Admiralty (Tactical & Staff Duties Division)