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Farmall & IHC Tractors Discussion Forum
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Re: alternator diode question

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merlynr

01-25-2013 08:12:41
166.137.101.177



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Google " bob melville" for drawings.
I converted my H and used a Chrysler voltage dropping resistor to keep the 6v coil and dizzy the same. Just reverse the leads on the coil because It's now 12v neg gnd.




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oldtanker

01-25-2013 08:24:28
66.228.255.239



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 Re: alternator diode question in reply to merlynr, 01-25-2013 08:12:41  
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The only thing needed to get rid of the risistor is a 12 volt coil. The points and condenser will be just fine. Dizzy stays the same. Only reason I kept the 6 volt coil on my M is I had the resistor and was low on funds at the time. Going with a 12 volt coil next tuneup.

Rick



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merlynr

01-25-2013 14:27:49
166.137.101.153



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 Re: alternator diode question in reply to oldtanker, 01-25-2013 08:24:28  
The voltage dropping resistor is a lot cheaper than the 12 volt coil,but I also thought that the condenser in the dizzy would need changed.



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oldtanker

01-25-2013 19:37:33
66.228.255.239



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 Re: alternator diode question in reply to merlynr, 01-25-2013 14:27:49  
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It is cheaper but I'm a student of the "keep it simple" school. Taking the resistor out just eleminates one more thing that could go wrong. 12 volt coil really isn't that expensive. Last one I got was around 25 bucks.

Rick



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Janicholson

01-25-2013 17:05:00
74.60.94.18



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 Re: alternator diode question in reply to merlynr, 01-25-2013 14:27:49  
Not needed, they are rated in the area of 400 volts, so 6 or 12 is not a problem. Jim



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