Ekco AD36 radio, 1935.A four-valve TRF (Tuned Radio Frequency) domestic receiver in a circular Bakelite case. TRF radios were usually battery powered,...

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Image Number:  1895-31353Rights ManagedCredit Line:Science Museum/SSPL/Science and Society/SuperStockCollection:Science and SocietyContributor:Science Museum/SSPLModel Release:NoProperty Release:NoResolution:3583×2536
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