With the points open the test light becomes the ground. That's normal operation- - - -points open, light burns. Points closed, light goes out.

WHAT VOLTAGE DO YOU GET AT THE COIL (-) TERMINAL WITH THE POINTS CLOSED?

This test is essential to diagnosing dirty or burned points. If you're unable or unwilling to do this test, I'm wasting my time on this thread.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!