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Re: 55 12 volt?
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Forum Ambassador
 
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Correct, the 55s are 12-volt positive ground.
Posted on: 2016/1/13 21:37
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Re: 55 12 volt?
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Home away from home
 
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Packard did change to 12-volt, negative ground, with their '56 models.
(o{}o)
Posted on: 2016/1/13 22:56
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We move toward
And make happen What occupies our mind... (W. Scherer) |
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Re: 55 12 volt?
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Home away from home
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Yes, after a loooonnng day at work my brain wasn't working properly--12 volt poaitive for 55 is definitely correct. I should know this but don't--what is the main advantage of the 12 volt negative as opposed to 12 volt positive?
Posted on: 2016/1/14 8:37
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Re: 55 12 volt?
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Forum Ambassador
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--what is the main advantage of the 12 volt negative as opposed to 12 volt positive?
None as far as function is concerned. But negative ground became the industry standard for 12-volt so where components are polarity-sensitive, supplies of positive ground units may be limited.
Posted on: 2016/1/14 8:56
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Re: 55 12 volt?
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Webmaster
 
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Found on the Inter-webs in regards to why industry went to -Negative ground and reposted without opinion to validity:
It is partly a matter of convention and standards, and partly because positive earth(ground) encourages "galvanic corrosion" of the surrounding bodywork - whereas with negative earth (ground) is the much easier to replace electrical contacts that corrode. Think back to school physics lessons with anodes and cathodes...
Posted on: 2016/1/21 15:40
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-BigKev
1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog 1937 Packard 115-C Convertible Coupe -> Registry | Project Blog |
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