McVitie Weston valve collection, RVC Radiotron valve, type UY-199
- Made:
- 1924
RVC Radiotron valve, type UY-199, (RMW/D150 - McVitie Weston number), by Unknown maker, 1924.
RVC Radiotron valve, type UY-199, (RMW/D150 - McVitie Weston number), by Unknown maker, 1924.