Brush Development Companywas a manufacturer ofaudio,phonographicproducts andmagnetic recordingtechnologies located inCleveland,Ohio.It was absorbed intoClevitein 1952.
History
editThe business was founded in 1919 by Alfred L. Williams asBrush Labsto develop products that usedpiezoelectriccrystals.[1]Associates spun off theBrush Development Companyin 1930 with piezoelectric phonograph pickups as its main product.[2]Later it began manufacturingwire recorders,microphones,andspeakers.
During World War II, Vice President for Research Dr. Semi Joseph Begun was awarded a contract from the US National Defense Research Council for research on a substitute for stainless steel wire used in wire recorders by the military.[1]
Post-war, Brush manufactured a dictation recorder in 1946, and released the first USA built tape recorder in 1947 with the Brush Soundmirror. In 1950, Brush built the Model BL-206 and BL-216 Multichannel Oscillographs, and associated Model BL-932 DC Amplifiers.[1][2]
In 1952 Brush Development Company merged with the original Brush Labs and the Cleveland Graphite Bronze company to createClevite.Audio products continued to be sold under the Brush trademark until 1960.[1]
The Clevite company was absorbed byGould-National Batteriesin 1969.[2][3]
References
edit- ^abcd"Brush".museumofmagneticsoundrecording.org.Museum of Magnetic Sound Recording.RetrievedFebruary 8,2022.
- ^abchttp://www.audiotools.com/dead_b.htmlAudiotools: Defunct Audio Manufacturers
- ^"BRUSH DEVELOPMENT CORP. – The Encyclopedia of Cleveland History".Case Western Reserve University.RetrievedDecember 6,2012.
Sources
edit- Gerard M. Foley. personal recollections of work sponsored at Battelle Memorial Institute by Brush 1943–1945.