It is my understanding that International big over-the-road trucks were
(are?) positive ground quite late. And, you may still be able to buy radios
and some other devices at truck stops.
FWIW Peter C
----
At 04:24 PM 7/16/99 , Dave Massey wrote:
>
>>Dave
>>
>>This is the most sensible argument I have heard, but does it accord with
>>the facts? British cars had positive earth until the 1960s and we have
>>heard from previous posts that many US cars had positive earth before
>that,
>>with Ford converting reluctantly in the mid 1950s. I have no idea what
>the
>>European practice was, but it seems like almost all cars were positive
>>earth before 1930. Who were the car manufacturers with the market power
>>necessary to convert the world to negative earth?
>>
>>Trevor Jordan
>>74 TR6 CF29281U
>
>The fact that all cars should be the same is logical. The selection of
>negative
>earth over positive earth is the question. What did GM do? What did VW
>do?
>Renault? Fiat? So far I haven't heard from these guys yet. GM probably
>had
>enough clout to become the standard all by themselves. That is if they
>were
>negative earth.
>
>Another possibility is that the electronics content going into cars from
>the 40's
>on drove the decision, as has been mentioned, but I kinda doubt it.
>
>Dave Massey
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