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Old 12-28-2023, 03:34 PM   #4
Charlie Stephens
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Join Date: May 2010
Location: Southern California
Posts: 7,062
Default Re: 20-0-20 amp meter

Quote:
Originally Posted by oldspert View Post
I want to convert to a 6 volt alternator that is a 37 amp output. Will this extra amperage damage my stock amp meter?
Since original amp meters are hard to find and repros are junk (at least they used to be) I would run a "shunt" to carry some (maybe half) of the current around the amp meter. Attached is a picture behind the dash on my '32. In a Model A I would probably just run two wires from the output of the alternator and connect one to each of the terminals on the amp meter. Be sure that each wire is heavy enough to carry all of the current to keep from having a fire if the amp meter fails. Just remember that the amp meter will show half of the current.

Charlie Stephens
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