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Mod | | | Forums66 Topics128,035 Posts1,055,557 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Mar 2005 Posts: 1,636 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 1,636 | Learn something new every day. I was taught (back in the mid 70s) that with a 12 volt system the ballast resistor would bring the voltage down to around 9 volts in order not to burning the points all the time.
In 1953 the truck would have been 6 volt so would not have needed a ballast resistor. But if it has been truly converted to 12 volt, then it will need one whether it is built in or not.
The advantage to an external ballast resistor would be the bypass wire used to supply battery voltage while the engine is cranking, then once running revert back to what is supplied through the resistor.
But I had never put the numbers to do the math. Thanks | | |
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