thermionic valve - valve,triode
Cosmos short path rectifying valve, SP41/U (half). Four prongs, black base, glass envelope; like a lightbulb with a sealing point on top. Dates c.1925.
Manufactured by Metropolitan Vickers
Details
- Category:
- Electronic Components
- Object Number:
- Y1970.58
- Materials:
- glass, metal (unknown) and plastic (unidentified)
- credit:
- Gift of Mr S Meakin
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