Wireless valve

Wireless valve, Osram R

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

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

License

Wireless valve, Osram R
Science Museum Group
© The Board of Trustees of the Science Museum

Wireless valve, Osram R., 1923, Phosphorus gettered, (filament broken)

Details

Category:
Electronic Components
Object Number:
1934-480
type:
valve
credit:
Largen, C.E.