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About: RCA Type 77-A microphone     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.org associated with source document(s)

Type: companyyago:WikicatMicrophonesyago:Artifact100021939yago:Device103183080yago:ElectricalDevice103269401yago:Electro-acousticTransducer103274561yago:Instrumentality103575240yago:Microphone103759954yago:Object100002684yago:PhysicalEntity100001930yago:Transducer104470953yago:Whole100003553 New Facet based on Instances of this Class

The RCA Type 77-A microphone was a simplex (uni-directional) ribbon microphone, the forerunner of the RCA Type 77-DX microphone. The 77-A was designed Dr. Harry F. Olson in the late 1920s or early 1930s; prototypes are rumored to have existed in 1929 and 1930, but the 77-A was not announced until 1932. The 77-A would set the standard for all other RCA ribbon microphone comparisons for the next 40 years.