McVitie Weston valve collection, Mullard valve, type 6725
- 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 valve, type 6725
Science Museum Group
© The Board of Trustees of the Science Museum
Mullard valve, type 6725, sphere-ended glass envelope with top pip, copper and black moulded 4-pin base, (RMW/J19A - McVitie Weston number), by Mullard Limited.
