Generator for the model A

[Tom Cavallaro]

Trying to set the amperage on the A using the gauge on the dash, and at a high idle I set the brush so the needle was between the 0 and 15 amp marks. When I checked the volts using a meter I was putting out 9 volts. When I had it set this way it always showed a charge on the meter except when I had the lights on. Now I used a volt meter and set the brush to put out 7.4 volts, but discharges big time when the lights are on. How should I be setting the genny.
Thanks, Tom