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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.
A feature not found on the 1979 CX-3 or on the vintage Hammond B-3 is the 2001 CX-3's EX mode, which enables the user to produce new and even unusual synthesized sounds using the tonewheel synthesis engine. The CX-3 does not have an 11-pin Leslie speaker jack, a feature found on vintage Hammond B-3's and on earlier clonewheel organs.
Each tonewheel assembly creates tones with low harmonic content, close to a sine wave. Inside the coil is a permanent magnet. As the profile of the tonewheel pass by, the strength of the magnetism changes—when the highest part is closest to the tip of the magnet, the magnetism is strongest.
In the 1960s, Hammond began to manufacture transistor organs in response to competitors such as Lowrey and Wurlitzer who were offering them, with a greater feature set compared to tonewheel Hammonds. [72] The first organ that bridged the gap between tonewheel and transistor was the X-66, introduced in May 1967.
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3) The CX-3 Tonewheel Organ engine is carried over from the Korg CX-3 modeled tonewheel organ released in 2001 (not Korg's 1980 CX-3 based on octave-divider technology). The CX-3 engine models a classic tonewheel organ, including rotary speaker effects, vibrato and chorus effects, and tube amplifier.
Thanks to Hammond's prior manufacturing and engineering experience, the tonewheel generator was extremely well-engineered by the time the "Hammond Organ" finally went into production in 1935. Tonewheel organs are still in regular use in the twenty-first century, which is a testament to the quality of the design and execution of the product.
Korg CX-3 (1980) According to journalist Gordon Reid, it "came close to emulating the true depth and passion of a vintage Hammond." [1]Transporting the heavy Hammond organ, bass pedalboard (a B-3 organ, bench and pedalboard weighs 425 pounds/193 kg) and Leslie speaker cabinets to performance venues makes it cumbersome for artists to tour with a vintage electromechanical organ.