File:Callan Large Electromagnet (1836).jpg

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English: The first crude induction coil, also the first transformer, built by Nicholas Callan at Maynooth College, Ireland, in 1836. It consisted of a horseshoe-shaped piece of iron with two wire windings on it. When Callan applied a voltage pulse to the smaller primary winding, it induced a larger voltage pulse in the longer secondary winding. Part of the collection of the National Science Museum of Maynooth, Ireland.
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Author AugusteBlanqui
Camera location53° 22′ 43.01″ N, 6° 35′ 52.57″ W View this and other nearby images on: OpenStreetMap

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inception

12 April 2016

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53°22'43.00500"N, 6°35'52.56841"W

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current13:17, 12 April 20161,520 × 2,688 (960 KB)AugusteBlanquiUser created page with UploadWizard
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