Image: Callan Large Electromagnet (1836)
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Description: 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.
Title: Callan Large Electromagnet (1836)
Credit: Own work
Author: AugusteBlanqui
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes
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