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, plastic (unidentified) and metal (unknown)
- Measurements:
-
overall: 150 mm 56 mm,
- credit:
- Gift of Mr S Meakin
