फोनोग्राफ (en. Phonograph)

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The M. Visweswaraya Museum gives visitors the opportunity to see things they cannot see in a regular museum, such as the reaction turbine, HF aircraft, steam wagon, circular type calculator and Edison's phonograph.

Not only did edison improve the phonograph several times, but he also worked on x-rays, storage batteries, and the first talking doll.

Phonograph pickup, non-contact switch, telephone set, a typewriter and computer keyboard, blood pressure monitors, optical shutters, optical switch, zoom lens, and tactile sensors, displays, displacement sensor.

These inventions, which include the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb, had a widespread impact on the modern industrialized world.

These inventions, which include the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb, have had a widespread impact on the modern industrialized world.

The Advantages of Phonograph Pre AMP Amplifier.