Portable disc recorder, model 2300H by HMV (The Gramophone Company Ltd., Hayes, Middlesex) complete with separate control panel and amplifier unit, three metal containers of 'Emidisc' blank discs for lacquer recording and instruction manual, 1945. Portable disc recorder model 2300H by HMV,1945 1945
"Recordon" magnetic disc recorder by Thermionic Products, London, c. 1949. Serial number W307911. "Recordon" magnetic disc recorder by Thermionic Products, c. 1949 1949
