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Telharmonium console by Thaddeus Cahill 1897. 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.
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.
Immediate source: The ‘Telharmonium’ or ‘Dynamophone’ Thaddeus Cahill, USA 1897. 120 Years of Electronic Music (120years.net). Date: 1907 (original file) Source: This file was derived from: Telharmonium - Scientific American 1907.png: Author: Telharmonium - Scientific American 1907.png: Unknown author; derivative work: Clusternote
This is a list of the National Register of Historic Places entries in Columbus, Ohio, United States. The National Register is a federal register for buildings, structures, and sites of historic significance.
"Primary" batteries can produce current as soon as assembled, but once the active elements are consumed, they cannot be electrically recharged. The development of the lead-acid battery and subsequent "secondary" or "chargeable" types allowed energy to be restored to the cell, extending the life of permanently assembled cells.
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Autolite or Auto–Lite is an American brand of spark plugs and ignition wire sets headquartered in Cleveland, Ohio. Autolite products are sold in the United States, Canada, Mexico, and Australia. Until 2011, the Autolite brand was a part of Honeywell's automotive Consumer Products Group, along with FRAM and Prestone. Since then, it has been ...
The company was based in Cleveland, Ohio. The Kuhlman Car Company was founded in 1892 [1] by Gustav C. Kuhlman (c.1859-1915), his father and three other brothers. It was acquired by the J. G. Brill Company in 1904, but continued building under the Kuhlman name. It was reorganized in 1931 as J. G. Brill of Ohio, but ceased operations completely ...