48 49 50 "Hot" Wire

Posted by Johnny On 2011/2/2 23:19:17

Just realized that my '48 Packard is a positive grounded vehicle - i.e. red (+) battery wire goes to ground, not the black (-) wire.

So here is the question: Which wire is supplying all the power "hot" going to the dash, which ultimately supplies power to the Accessory Circuit Breaker?

Is it the wire that goes to the AMM Gauge (+) or (-)?

The wire that goes to the AMM (+) comes from the Voltage Regulator (B), which gets its power from the Generator and the Battery (+).

The wire that goes to the AMM (-) comes from the Starter, which gets it power from the Battery (-).

Thank you.