Alternators made in 1909 by Ganz Works in the power generating hall of a Russian hydroelectric station (photograph by Prokudin-Gorsky, 1911).
Konono Nº1 performing in May 2007
In what is considered the first industrial use of alternating current in 1891, workmen pose with a Westinghouse alternator at the Ames Hydroelectric Generating Plant. This machine was used as a generator producing 3,000-volt, 133-hertz, single-phase AC, and an identical machine 3 miles away was used as an AC motor.
Diagram of a simple alternator with a rotating magnetic core (rotor) and stationary wire (stator) also showing the current induced in the stator by the rotating magnetic field of the rotor.
Alternator mounted on an automobile engine with a serpentine belt pulley (belt not present.)

Electrical generator that converts mechanical energy to electrical energy in the form of alternating current.

- Alternator

The group's amplification equipment is equally rudimentary, including a microphone carved out of wood fitted with a magnet from an automobile alternator and a gigantic horn-shaped amplifier.

- Konono Nº1
Alternators made in 1909 by Ganz Works in the power generating hall of a Russian hydroelectric station (photograph by Prokudin-Gorsky, 1911).

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