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Antique Radios, Wireless, Crystal Sets, Tubes, and Valves | Antique radio, Vintage radio, Vintage valve
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Wade Bequest collection of valves: Marconi-Osram Valve radio valve type D43 | Science Museum Group Collection
![Wade Bequest collection of valves: early triode radio valve by Marconi-Osram, 1926 | Science Museum Group Collection Wade Bequest collection of valves: early triode radio valve by Marconi-Osram, 1926 | Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/images/448/597/medium_SMG00237636.jpg)
Wade Bequest collection of valves: early triode radio valve by Marconi-Osram, 1926 | Science Museum Group Collection
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