McVitie Weston valve collection
- Made:
- circa 1937
This image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseMazda straight RF Pentode valve, type SP
Science Museum Group
© The Board of Trustees of the Science Museum
Mazda straight RF Pentode valve, type SP.210, B7+tc base, metallized, marked 'DUMMY', (RMW/Y94 - McVitie Weston number), made by British Thomson-Houston Company Limited, c. 1937.
