Electronic Transistorized Alternator voltage Regulator test

Good afternoon All,

Yesterday I was driving the Demon and the headlights and dash lights went into "blinking" mode and then went dim. Knowing I was one of two things, I went on line to find info on the wiring harness schematic so I could chase down my issue. Now my 1972 Demon has the electronic voltage regulator and 2 field wires out the back. This information is for that style regulator and not the 71 and older style. I was really perplexed that with all the information on the web, there was nothing to actually "check" the regulator and alternator. So because I am very low on time I went to buy an alternator (rebuilt) and a new voltage regulator.

In the regulator box (I chose to go regulator replace first as it was less expensive that the alternator) I found a trouble shooting chart that for the first time shows how to test the alternator and wiring BEFORE you replace anything.
I wanted to share this with you. I can send any one who asks (with your email address) a .pdf file for you to print out at home.

Turns out all I needed was the regulator. Alternator is charging great at 13.8volts and 55 amps.

Thanks for your time.
Joe