Cryselco triode
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LicenseThis 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
LicenseCryselco triode, with Admiralty logo and interservice cap
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Cryselco triode, with Admiralty logo and interservice cap, marked "Patt. No. 5197 Valve No. R5"
