The amount of voltage at the #1 terminal will determine how fast the alternator must turn before it begins to charge.
A diode in line (series) with the light will not make any difference since the light bulb is the resistance that lowers the voltage at the alternator. If you wire the diode in parallel with the light the light will not turn on since the current will flow though the diode rather than the bulb.
You need a minimum of about 6 volts to get the alternator to start at a lower rpm. You can use a resister wired in parallel with the light to increase the voltage available at the #1 terminal. The resistor will however cut down on the brightness of the light.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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