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EV Timeline: 1942 - 1963
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1942-45: Noise-cancelling mic production required by the military increases production at EV. Number of employees soars to 500, daily production peaks at 2,500, with total production close to 1 million.
1945: Burroughs receives a special citation from the U.S. war department for the T-45 microphone. Kahn is told by a Marine Corps officer that the historic landing at Guadalcanal was held up several weeks until troops could be equipped with the mic in order to reduce casualties.
EV's Buchanan facility going full capacity, post World War II. |
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1946: EV transfers operation to facilities in Buchanan, MI, later expanded several times and still in use to this day. The company establishes the first anechoic chamber outside of a research laboratory at its Buchanan facilities.
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A full line of phono cartridges, a market segment the company dominated. |
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1946: Burroughs develops Acoustalloy, a synthetic plastic applied to the aluminum diaphragms used in dynamic mics at the time, resulting in improved sound quality. Rather than disclose the nature of Acoustalloy in a patent, the synthetic formula was retained as a trade secret.
1948: Phonograph cartridges are added to the EV line.
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Late 1940s: Kahn is directly involved with the beginnings of Heathkit in Benton Harbor, MI, donating a train car of surplus electronic parts that become the foundation of the O1 oscilloscope, Heathkit’s first electronic project.
A diverse selection of hi-fi speakers, receivers and more. |
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1950: EV begins manufacture of home hi-fi loudspeakers, quickly becoming of of the largest suppliers in the U.S.
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1953: Introduction of Variable-D microphone technology, which reduces proximity effect.
1959: A 30-inch woofer, the model 30W, is introduced by EV, used in the Patrician Series of home hi-fi speakers.
A mic for any need, as shown in this display from the early '60s. |
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Late 1950s - 1970s: EV microphones are a staple of space flight, beginning with early Mercury and Gemini missions through Skylab space station. Both mics and speakers served Skylab during its six-year orbit, performing without failure despite a lost heat shield.
Early 1960s: The EV 643 "monster mic" is introduced. Six feet long, it is highly successful in picking up distant sounds and becomes a standard at presidential press conferences, political conventions and athletic events where conventional mics can't handle the distance problem.
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1963: EV becomes one of the few manufacturers ever to receive an Oscar for the development of the model 642 Cardiline, another long-range mic.
Peter, Paul & Mary, one of the top folk groups of the ‘60s, using EV660 Series (likely model 664) mics. |
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The award, in part, read "To Electro-Voice for a highly directional dynamic line microphone... capable of picking up sound in situations where a microphone cannot be placed close to the sound source and where unwanted sounds are to be discriminated against."
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