Wade Bequest collection of valves: experimental radio valve
- PART OF:
- Wade Bequest collection of valves
Wade Bequest collection of valves: experimental radio valve with what appears to be two spherical concentric anodes. With B4-1 base and top seal.
Wade Bequest collection of valves: experimental radio valve with what appears to be two spherical concentric anodes. With B4-1 base and top seal.