The guitar has been successfully enlarged,

Hawaiian guitarist George Beauchamp and electrical engineer Adolph Rickenbacker met at the Dopyra Brothers guitar manufacturer in Los Angeles, California.

They eventually developed a schematic diagram of a revolutionary idea: an electric guitar. The premise is simple: by installing two magnets on the guitar, a magnetic field is generated, which absorbs the vibration of the strings and transmits it to the resonance coil.

Now the guitar has been successfully enlarged, but there are still big problems. The appeal of volume is absolutely attractive, but there was a major problem with the earliest guitars. The best acoustic guitar is designed to be very resonant. When the guitar is amplified, this design will generate quite a lot of feedback, which is undoubtedly harmful to the music at that time. There must be a solution.

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