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Re: 1948 8N 12V front coil-Electric circuit question

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01-08-2013 05:32:50

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in your wiring diagram, the current produced in the alternator simply flows from the wire marked batt on the alternator back to the battery. however your ampmeter wont show the current being produced, or discharged from the battery since its wired wrong. since the alternator puts out typicaly 14.5 or so volts current simply runs backwards so to speak..NOTE: add a ground wire to the negative side of your guage and this wiring diagram is basically for a VOLTMETER instead of a ampmeter, and it will work as intended. a voltmeter shows battery voltage,or voltage being produced. a ampmeter shows amps being produced and either directed back to or away from the battery. they are wired differently.

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01-08-2013 07:48:21

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 Re: 1948 8N 12V front coil-Electric circuit question in reply to jackinok, 01-08-2013 05:32:50  
Wiring it your way will result in a short to ground.

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01-08-2013 06:12:14

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 Re: 1948 8N 12V front coil-Electric circuit question in reply to jackinok, 01-08-2013 05:32:50  
if he changes that ammeter to a voltmeter and adds a ground.. the voltmeter will be ALWAYS on... I'd want mine rn thru the ignition switch.. not always powered...

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01-08-2013 07:38:28

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 Re: 1948 8N 12V front coil-Electric circuit question in reply to soundguy, 01-08-2013 06:12:14  
thats true, but some folks like them wired this way, i'm like you though ,i would prefer mine to shut down also. just trying to explain how they worked.

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