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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.
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Keithley Instruments bench-top digital multimeter. Keithley Instruments is a measurement and instrument company headquartered in Solon, Ohio, that develops, manufactures, markets, and sells data acquisition products, as well as complete systems for high-volume production and assembly testing.
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 ]
Richard I. Berger (born 1952) is the president. Before becoming president, he had overseen the Trophy Grover Company and Grossman Musical Products, which in 1983, was one of the largest distributors of musical instruments in the U.S. Grossman Musical Products was founded in 1922 by his great uncle, Henry Saul Grossman (1898–1995) [5] who, from 1953 to 1966, owned Rogers Drums.
Pages in category "1980s in Cleveland" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. 0–9.
Ohio portal; 1980s portal; United States portal; History portal; North America portal ... 1980s in Cleveland (8 P) E. 1980s Ohio elections (8 C) S. 1980s in sports in ...
Brush Instruments; Clevite Electronic Components; and Clevite Ordnance. Clevite won defense contracts for some of its products and opened a new ordnance plant in 1967. [ 3 ] Clevite purchased Shockley Semiconductor Laboratory in 1960 and continued operating it until selling it (again to ITT as it had done with Intermetall) in 1968.