Ruhmkorff coil

Started by unknown · date unknown · 4 posts

1. massive

   #1 · date not recorded

   induction coil invented 1836 by nicholas callan , same time as charles page (who made a 10 ton electric bus in 1850)
   
   theres a progresion of inventors of the induction coil , heinrich ruhmkorff in 1851 , leading up to teslas work with HV induction coils and 1/4 wave lengths .
   
   heres a good modern circuit
   
   http://www.giangrandi.ch/electronics/geissler/geissler.shtml
    

2. Steve

   #2 · date not recorded

   So, what is the advantage with this coil?
   

3. massive

   #3 · date not recorded

   
   1836 to 2016 is 170 years we use this coil every day .  It uses a DC make and break to turn DC into HV with out using motion , its the Flux that is in motion.
   make and break interupters have gone from rotary rheotomes , shown in Tesla canadian patent , magnetic reed switch , cam driven points and now solid state ignition systems
   
   heres a rheotome
   http://earlyradiohistory.us/1901fa21.htm
   

4. Newguy

   #4 · 29 Mar 2016

   I think the most amazing thing to me about inductors are how they work with an air core.