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Radio, Valve Radio, Radio Restoration, Vintage Television Forum, Vintage Television, Valve
Television, Television Restoration, Valves, Thermionic, Test Equipment, 405 line
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Television, Radio and Television Servicing, Service information, Vintage Schematics,
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Thorn 1400, Thorn 1500, LOPT, Line output Transformer, Valve Tester, AVO, Taylor, Fluke,
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