Keywords: Hippolyte Pixii dynamo.png Drawing of first dynamo commutated electric generator invented by French instrument maker Hippolyte Pixii in 1836 Drawing is signed 'E Bourdain' Alterations removed caption rotated to make image vertical Downloaded from http //books google com/books id c64OAAAAYAAJ pg PA57 Hippolyte Fontaine 1878 Electric Lighting A Practical Treatise translated from French by Paget Higgs E F N Spon London UK p 57 fig 12 on Google Books 1878 E Bourdain Public domain - author died more than 70 years ago PD-old History of technology Dynamos Magnetos |