Greg Mayman wrote in a message to Roy J. Tellason:

 -=> Roy J. Tellason said to George White
 -=> about "VEHICLE LED'S" on 09-30-03  04:05.....

 RJT> Even though it's been *ages* since I've actually seen one of those, 
 RJT> now that you mention this I can remember that a couple of the coils on
 RJT> those things (the 3-coil units) were wound with some *really* thick
 RJT> wire.  :-)  Those must be the "current" windings.

 GM> Yup.

 RJT> The other thing that just comes to mind with those is that underneath
 RJT> the mounting base were wire-wound "resistors",  maybe 2
or 3 of them.

 GM> Usually wound on mica strips. IIRC they were connected across the
 GM> "buzzing" contacts of the voltage and current control relays to
 GM> minimize arcing.

Mica?  I had no idea that's what was in there.  Those things were *riveted*
in place,  and not at all easy to remove,  if one were so inclined.

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