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
LicenseMarconi-Osram R valve, with BBC marking c.1923
Science Museum Group
© The Board of Trustees of the Science Museum
Marconi-Osram R valve, with BBC marking c.1923
Details
- Category:
- Electronic Components
- Object Number:
- 1978-204
- type:
- thermionic valve
- credit:
- Imperial College of Science & Technology (Dept. of Electrical Engineering)
