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Re: Re: Re: Re: 48 Ford generatorPosted by Kent of SW MO on November 30, 2006 at 09:44:30 from (12.178.152.6): In Reply to: Re: Re: Re: 48 Ford generator posted by Rustyfarmall on November 30, 2006 at 06:49:32: One of the "over the road tractor companies" are still positve ground and use alternators. It may be PETE. Mack was at one time but I think they switched to negative grd. Big truck alternators have both a positve and negative posts so you can pick you ground polarity. I do not know WHY any one would want to stay with positve grd. as almost all modern electronic is designed for negative grd. You can run a switching power supply from the postive grd. system and them run your electronic from the switching supply. Kent
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