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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. [5]
Cahill had tremendous ambitions for his invention; he wanted telharmonium music to be broadcast into hotels, restaurants, theaters, and even houses via the telephone line. [3] At a starting weight of 7 tons (and up to 200 tons) and a price tag of $200,000 (approx. $5,514,000 today), only three telharmoniums were ever built, and Cahill's vision ...
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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
Simplified diagram of how a tonewheel works Goldschmidt tone wheel (1910), used as an early beat frequency oscillator. A tonewheel or tone wheel is a simple electromechanical apparatus used for generating electric musical notes in electromechanical organ instruments such as the Hammond organ and in telephony to generate audible signals such as ringing tone.
An auto show, also known as a motor show or car show, is a public exhibition of current automobile models, debuts, concept cars, or out-of-production classics. It is attended by automotive industry representatives, dealers, auto journalists and car enthusiasts. Most auto shows occur once or twice a year.
YouTube has faced criticism over aspects of its operations, including its handling of copyrighted content contained within uploaded videos, [3] its recommendation algorithms perpetuating videos that promote conspiracy theories and falsehoods, [4] hosting videos ostensibly targeting children but containing violent or sexually suggestive content ...
Once a car is accepted to the Concours, it cannot again be entered in the event for ten years, with three exceptions; the ownership of the car has changed, the car has been restored, or if the featured marque is obscure, the Concours car selection committee can reach out to invite cars of varying restoration quality—or cars that have ...