Bill, the power comes in at the buss, thru the thermal circuit
breaker to the common terminals. The brass slider has three
positions OFF/PARKING/HEAD LIGHTS. This should be clear if you
follow the three color coded positions of the brass contact slider:
http://www.pbase.com/dennygraham/image/160746301/large

Denny Graham
Sandwich, IL


Denny G
Sandwich, IL