{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/33138"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/33138","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Analysis and restoration of a 1960s ear vacuum tube AM-FM reflex receiver","abstract":"This thesis details the analysis, restoration, and evaluation of a 1960s era vacuum tube AM-FM reflex receiver. External influences such as tax laws necessitated clever designs to minimize the use of expensive vacuum tubes in radios. The thesis work yielded a thorough description of the circuits, the successful restoration of the radio to nominal operation, and concluded with a brief evaluation of the radio's operating characteristics.","abstract_html":"This thesis details the analysis, restoration, and evaluation of a 1960s era vacuum tube AM-FM reflex receiver. 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