Are the old military Cav Ammeters, which I think are 24v, alright to use on a 12v set up?
With my Series 1 being converted to alternator it will put out a lot more than the 30amp ammeter has - I want something period looking and there are quite a few Cav 100amp units about, but I don’t know if they only work in a 24v system....
I’m thinking that Ohms law means it won’t ? As the current is proportional to the voltage?