Keywords: Ruhmkorff coil schematic 1.svg Ruhmkorff coil induction coil or spark coil circuit The Ruhmkorff coil was a high voltage transformer that generated pulsing high voltage current from a low voltage DC source by use of a vibrating magnetic contact arm called an interrupter It was developed between 1836 and 1870 by Nicholas Callan Heinrich Ruhmkorff and many others 2007-12-30 Derived from Ruhmkorff inductor schem svg originally from Ruhmkorffinductor svg <br /> Alterations to Ruhmkorff inductor schem svg Redrew interrupter to clarify increased thickness of wires changed labels Original work PieterJanR This version Chetvorno other versions cc-zero Uploaded with UploadWizard Induction coils SVG |