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Old 10th Sep 2018, 8:42 pm   #4
MotorBikeLes
Nonode
 
Join Date: Dec 2012
Location: Kirk Michael, Isle of Man
Posts: 2,350
Default Re: 9-0-9 DC Ammeter (Application?)

8-0-8 and 12-0-12 centre zero ammeters were regularly used on 6v motorcycles certainly from early '30s to even the '70s.I have 8-0-8 versions on two of my bikes, a 1935 New Imperial, and a 1954 Velocette.
I think the one shown by OP would be off a tractor or bulldozer. They usually had limited equipment, lights and maybe a heater, and running usually 12v, 9 amps would be plenty.
Les.
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