NBC RCA model parabolic condenser microphone on stand

NBC / RCA model parabolic condenser microphone on stand

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Model of a NBC / RCA parabolic condenser microphone on stand. Model black parabola on natural wood tripod marked NBC. Unit was made for display purposes in 1935. Parabolic microphones were designed to transmit wide area ambient sound. Parabola shell reflects and focuses incoming sounds to the diaphragm of the microphone. Used with condenser, inductor, and velocity microphones.
Currently not on view
Object Name
Parabolic Microphone
condenser microphone
Other Terms
Parabolic Microphone; Audio Devices
date made
RCA Corporation
overall: 16 in x 8 in x 6 in; 40.64 cm x 20.32 cm x 15.24 cm
ID Number
catalog number
accession number
Credit Line
from National Broadcasting Company, Inc.
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Work and Industry: Electricity
Data Source
National Museum of American History
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