By necessity the regulator must sense the battery voltage and notice when it is below a certain threshold. When this occurs, the regulator calls for the generator (or alternator) to "give it some juice" and the output will be only limited by the regulator cutout. When that happens the ammeter goes to the full charging amperage. Now the regulator senses that the battery voltage is too high so it cuts the generator off and the needle of the ammeter returns through zero and as soon as the regulator senses the voltage to have dropped below the threshold it calls for the generator to give it some more juice and the cycle repeats. An ammeter that has dampening will respond more slowly so you don't see the fluctuation.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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