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  2. Telharmonium - Wikipedia

    en.wikipedia.org/wiki/Telharmonium

    The Telharmonium (also known as the Dynamophone [1]) was an early electrical organ, developed by Thaddeus Cahill c. 1896 and patented in 1897. [ 2 ] [ 3 ] [ 4 ] The electrical signal from the Telharmonium was transmitted over wires; it was heard on the receiving end by means of " horn " speakers.

  3. Eico - Wikipedia

    en.wikipedia.org/wiki/Eico

    EICO was established in New York City in 1945 by radio repair business owner Harry Ashley to manufacture electronic test equipment in kit form. His first product, advertised in the July 1946 Radio News, was the model 113 VTVM/audible signal tracer. [ 1 ]

  4. Thaddeus Cahill - Wikipedia

    en.wikipedia.org/wiki/Thaddeus_Cahill

    Thaddeus Cahill (June 18, 1867 – April 12, 1934) was a prominent american inventor of the early 20th century. He is widely credited with the invention of the first electromechanical musical instrument, which he dubbed the telharmonium.

  5. Seeburg Corporation - Wikipedia

    en.wikipedia.org/wiki/Seeburg_Corporation

    Seeburg was an American design and manufacturing company of automated musical equipment, such as orchestrions, jukeboxes, and vending equipment. Founded in 1902, its first products were Orchestrions and automatic pianos but after the arrival of gramophone records, the company developed a series of "coin-operated phonographs."

  6. List of military electronics of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_military...

    This article lists American military electronic instruments/systems along with brief descriptions. This list specifically identifies electronic devices which are assigned designations according to the Joint Electronics Type Designation System, beginning with the AN/ prefix. They are grouped below by the first designation letter following this ...

  7. Category : Audio equipment manufacturers of the United States

    en.wikipedia.org/wiki/Category:Audio_equipment...

    Chicago Musical Instruments; Chicago Talking Machine Company; Clair Global; Clear-Com; Columbia Grafonola; Community Professional Loudspeakers; Core Sound LLC; Paul Cornford; Carl Countryman; Crest Audio; Crosley Radio

  8. Vega Radio Engineering Corporation - Wikipedia

    en.wikipedia.org/wiki/Vega_Radio_Engineering...

    Founded in 1944 as The Moscow Scientific Research Institute of Instrument Engineering (MNIIP), [3] the company has during its history developed radio electronic equipment, airborne radars for early warning and control systems, including that for the A-50 airplane; space- and airborne synthetic aperture radars for earth surveillance, including ...

  9. Chuck Surack - Wikipedia

    en.wikipedia.org/wiki/Chuck_Surack

    Chuck Surack is an American entrepreneur, businessman, philanthropist and musician, best known as the founder of Sweetwater Sound, one of the world's largest retailers of musical instruments and professional audio equipment. [1] [2]