Valve 4104D

Valve

Valve 4104D. Also marked 17580/15 and 161619. Bakelite fixing. Green tip to top of bulb. Triode. c.1926
Asbestos Inspection - Non-Asbestos.

glass, plastic, bakelite

Standard Telephones & Cables Ltd

Electronic and Electrical Engineering

LDUSC-EE-48

47

UCL Science and Engineering Collections