Wade Bequest collection of valves: early R-type triode radio valve
- PART OF:
- Wade Bequest collection of valves
Wade Bequest collection of valves: early R-type triode radio valve. With B4-2 base. With paper label: W71.
Wade Bequest collection of valves: early R-type triode radio valve. With B4-2 base. With paper label: W71.