McVitie Weston valve collection, Siemens-Halske triode valve
- Made:
- 1918
Siemens-Halske triode valve, Marked 50370, (RMW/B160 - McVitie Weston number), by Siemens & Halske Norsk, 1918.
Siemens-Halske triode valve, Marked 50370, (RMW/B160 - McVitie Weston number), by Siemens & Halske Norsk, 1918.