Re: IH Coils

Posted by John T on December 05, 2005 at 10:00:44 from (66.244.90.98):

In Reply to: IH Coils posted by Mark Peters on December 05, 2005 at 09:43:16:

Mark, if all else fails you could use an ohmmeter to measure their primary resistance as measured between their lil + and - terminals. If its in the 1.25 to 1.75 or so ohms range its my best guess it likely a 6 volt coil, but if over 2 to 3 and some over its my guess its a 12 volt coil. This is just a best guess as I have absolutely no specs or data on those coils, maybe Bob or Jim or Hal does and they can tell you the precise values??? They made some coils labeled "12 volts for use with an external ballast resistor" which are in reality more like 6 volt coils and some labeled "for 12 volt use only" what I would consider a true 12 volt rated coil.

Both coils and points are more "current" then voltage devices, its the current passing through or switched by them that sets up the induced voltages and energy transfer etc. If you use a 6 volt unballasted coil at 12 volts it could run hot plus the points wont last near as long due to the excess currents.

John T

Replies:

• Re: IH Coils Mark Peters 12:02:40 12/05/05 (2)
  • Re: IH Coils Janicholson 12:07:08 12/05/05 (1)
    • Re: IH Coils Mark Peters 12:17:37 12/05/05 (0)

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