An old engraving of an electrical magneto used for medical purposes from the mid-1800s. It is from a Victorian mechanical engineering book of the 1880s. The magneto was used for treatment of mental illness in the beginnings of electromedicine. In 1850 French doctor Duchenne de Boulogne developed a magneto for clinical experiments in neurology. In the USA Ari Davis (–1855), a skilled American craftsman, who received two patents for a similar device in 1854.
An old engraving of an electrical magneto used for medical purposes from the mid-1800s. It is from a Victorian mechanical engineering book of the 1880s. The magneto was used for treatment of mental illness in the beginnings of electromedicine. In 1850 French doctor Duchenne de Boulogne developed and manufactured a magneto with a variable outer voltage and frequency, through varying revolutions by hand or varying the inductance of the two coils, for clinical experiments in neurology. In the USA Ari Davis (–1855), a skilled American craftsman, who received two patents for a similar device in 1854. A magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. Hand-cranked magneto generators were used to provide ringing current in telephone systems. Magnetos were also adapted to produce pulses of high voltage in the ignition systems of internal combustion engines.
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Photo credit: © M&N / Alamy / Afripics
License: Licensed
Model Released: No
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