Sonotone (hearing aid)
Battery compartment of a Sonotone 77 hearing aid.
Sonotone Corporation was a hearing aid manufacturer that was started by Hugo Leiber[secondary source needed], inventor of the bone conduction receiver,[1] in New York City in 1929. It was a leader in the hearing aid industry until multiple buyouts ending in 1970 led to the abandonment of the manufacturing plant.[2] It was temporarily revived in 1987 but had closed again by 2005.
Notable models of Sonotone hearing aids include the Sonotone 1010 in 1952 with a transistor and two vacuum tubes.[3]
By 1960, in addition to hearing aids, Sonotone manufactured nickel cadmium batteries, loudspeakers, and hand held microphones,
References[]
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- ^ US 2249572, Lieber, Hugo, "Wearable bone-conduction hearing aid", published 1941-07-15, assigned to Lieber Patents Corp.
- ^ Russell, Roger. "Sonotone Corporation History".
{{cite web}}: CS1 maint: url-status (link) - ^ "1952: TRANSISTORIZED CONSUMER PRODUCTS APPEAR". ComputerHistory.org.
{{cite web}}: CS1 maint: url-status (link)
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Categories:
- United States company stubs
- Hearing aid manufacturers
- Companies based in New York City
- American companies established in 1929
- American companies disestablished in 2005
- Electronics companies established in 1929
- 1929 establishments in New York (state)