McVitie Weston valve collection, Tungsram valve, type R2018
- Made:
- 1933
Tungsram valve, type R2018, marked U093, (RMW/F79 - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd., 1933.
Tungsram valve, type R2018, marked U093, (RMW/F79 - McVitie Weston number), by Tungsram Electric Lamp Works (Gt. Britain) Ltd., 1933.