McVitie Weston valve collection
- Made:
- 1931
- maker:
- Mullard Limited
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
LicenseMullard output pentode valve, type PEN4V, B5+st base
Science Museum Group
© The Board of Trustees of the Science Museum
Mullard output pentode valve, type PEN4V, B5+st base, (RMW/Y215 - McVitie Weston number), by Mullard Limited, 1931.
