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Voltage regulator

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stevebei View Drop Down
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Joined: 18 Sep 2016
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    Posted: 23 Sep 2017 at 3:08pm
My 1948 Model B's generator has been converted to 2-wire. Has anyone replaced the mechanical 6-volt positive ground voltage regulator with an electron one? Any sources for an electronic one? Thanks.
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DougS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DougS Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2017 at 4:27pm
2-wire? Please explain.

Edited by DougS - 23 Sep 2017 at 4:28pm
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stevebei View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote stevebei Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 11:32am
My terminology mistake. I should have said the generator is two-brush as opposed to three brush. A two-brush generator uses a voltage regulator instead of the three-position headlight switch to put a load on the generator.
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Gerald J. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2017 at 6:21pm
A three brush generator has no different voltage regulation than a generator without a voltage regulator. With constant field current the output voltage is proportional to the shaft speed, but the third brush limits the maximum current so limits voltage a bit that way. It still will overcharge the battery easily. The light switch changes the field current and so the maximum current on the three brush generator.

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