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Hammond was not interested in marketing or selling the speakers, so Leslie sold them himself as an add-on, targeting other organs as well as Hammond. Leslie made the first speaker in 1941. The sound of the organ being played through his speaker received national radio exposure across the US, and it became a commercial and critical success.
The Hammond organ is an electric organ, invented by Laurens Hammond and John M. Hanert [1] and first manufactured in 1935. [2] Various models were produced, which originally used tonewheels to generate sound via additive synthesis , where component waveform ratios are mixed by sliding switches called drawbars and imitate the pipe organ's registers.
The Leslie company was sold to CBS in 1965, and the following year, Hammond finally decided to officially support the Leslie speaker. The T-200 spinet, introduced in 1968, was the first Hammond to have an integrated Leslie speaker. [ 104 ]
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.
The Hammond organ is an electric organ invented by Laurens Hammond and John M. Hanert [6] and first manufactured in 1935. [7] Multiple models have been produced, most of which use sliding drawbars to vary sounds.
Donald James Leslie (April 13, 1911 – September 2, 2004) was an American inventor best known for the Leslie speaker and its distinctive effect commonly used with the Hammond organ which helped popularize electronic instruments.
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Laurens Hammond was born in Evanston, Illinois, on January 11, 1895 [1] to William Andrew and Idea Louise Strong Hammond. [2] Laurens showed his great technical prowess from an early age. His father, William, took his own life in January 1897, ostensibly due to failure of the First National Bank of Illinois, which he had founded.