Wade Bequest collection of valves: Early triode radio valve described as 'soft' Silver valve
- PART OF:
- Wade Bequest collection of valves
- Made:
- Portsmouth
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Wade Bequest collection of valves: Early triode radio valve described as 'soft' Silver valve, c.1908/1916. With flat circular anode connected to top wire and flat parallel wire grid. Very unusual - looks similar to German-made valve.
