The Invention of the Electric Guitar Tuner (1935)
This invention revolutionized the way guitarists tune their instruments. In 1935, a revolutionary device was created that allowed guitarists to quickly and accurately tune their instruments: the electric guitar tuner. This device used an electric current to detect the pitch of the strings and then display the correct tuning.
An electric guitar is a guitar that, unlike a standard acoustic guitar, requires external electric sound amplification to be heard at typical performance volumes. It uses one or more pickups to convert the vibration of its strings into electrical signals, which ultimately are reproduced as sound by loudspeakers. The sound is sometimes shaped or electronically altered to achieve different timbres or tonal qualities via amplifier settings or knobs on the guitar. Often, this is done through the use of effects such as reverb, distortion and overdrive; the latter is considered to be a key element of electric blues guitar music, rock and heavy metal guitar playing. Designs also exist combining attributes of electric and acoustic guitars: the semi-acoustic and acoustic-electric guitars.