JR North wrote:
The test lamp ON the terminal.....tap, tap, tap
JR

trainfan1 wrote:

JR North wrote:

BBBZZZZZZTTTTTT!
If the points are shorted, the - terminal won't glow-the current all
goes to ground. If the - terminal glows, the - circuit is open.
JR


How does a terminal glow?

Rob




So, if the points are not shorted or closed, and the OP is getting ~12
volts with a test lamp at the (+) & (-) terminals of the coil, where is
the ground/negative return for this circuit?

Rob