We are both right! Read the rest of Barney's post and you will see
the next thing he says is:
Alternately, you can disconnect the wire from coil to distributor,
connect the test light to a live power source (lower fuse for
instance), and touch the probe to the distributor terminal. When
points are closed it completes the circuit to ground, and you get light.
This is the method shown in the video.
-Steve
At 01:07 PM 5/9/2013, Richard Ewald wrote:
>Steve said:
>
> Light on = points closed. Light off = points open.
>
>
>Barney said:
> >>The contact points are switching the coil wire to ground. With
> ignition on, when points are open there will be power on the wire
> from coil to distributor. When points are closed the wire is
> grounded and will have no power, 0-volts, no light.
>
>One of these is not like the other. :-)
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