Tuning fork
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A tuning fork is an acoustic resonator in the form of a two-pronged fork with the prongs formed from a U-shaped bar of elastic metal. It resonates at a specific constant pitch when set vibrating by st
Tuning fork by John Walker stamped with note (E) and frequency in hertz (659)
Quartz crystal resonator from a modern quartz watch, formed in the shape of a tuning fork. It vibrates at 32,768 Hz, in the ultrasonic range.
A Bulova Accutron watch from the 1960s, which uses a steel tuning fork (visible in center) vibrating at 360 Hz.
1 kHz tuning fork vacuum tube oscillator used by the U.S. National Bureau of Standards (now NIST) in 1927 as a frequency standard.
Rhodes piano
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The Rhodes piano is an electric piano invented by Harold Rhodes, which became popular in the 1970s. Like a conventional piano, the Rhodes generates sound with keys and hammers, but instead of strings,
Tuning fork
…electromagnets close to the prongs. A number of keyboard musical instruments use principles similar to tuning forks. The most popular of these is the Rhodes piano, in which hammers hit metal tines that vibrate in the magnetic field of a pickup, creating a signal that drives electric amplification. The earlier…
The 88-key Rhodes MkI Stage Piano
The Rhodes piano generates its sound by hammers hitting a bar of metal known as a tine.
The Rhodes Mk V was the last model released by the original Rhodes corporation.
The Rhodes Mark 7 was released in 2007.