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Farmall & IHC Tractors Discussion Forum
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Broken up Ballast Resistor on 12v conversion

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Wisconsin_Joe

07-17-2007 06:13:20




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I just ordered a new ceramic ballast resistor for my H and wondered when I get the new one does it matter which end is up when I install it. Thanks




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pete_5959

07-17-2007 12:06:56




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 Re: Broken up Ballast Resistor on 12v conversion in reply to Wisconsin_Joe, 07-17-2007 06:13:20  
Joe, The ceramic portion should be up. This helps with heat disipation. Of course they are not polarized. Hopes this helps....

Pete



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John T

07-17-2007 06:31:19




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 Re: Broken up Ballast Resistor on 12v conversion in reply to Wisconsin_Joe, 07-17-2007 06:13:20  
In addition to Jims post, Im of the opinion a good tight clean to heavy metal (like heavy iron or tractor steel or casting) mounting of the ballast can improve heat transfer away from it to a cooler heat sink. i.e. MOUNT IT to a heavy piece of tractor metal DO NOT let it merely suspend in free air using a piece of wire or zip tie etc.

John T



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Janicholson

07-17-2007 06:22:11




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 Re: Broken up Ballast Resistor on 12v conversion in reply to Wisconsin_Joe, 07-17-2007 06:13:20  
No they are not polarized, and not sensitive to position except being placed where air would be restricted (they get hot and need to be placed where airflow will cool them well. JimN



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