Re: 9-0-9 DC Ammeter (Application?)
I'm thinking an 'industrial' application, like a tractor, domestic lighting-set, well-water pump or such.
Or maybe a motorcycle?
Something whose electrical load was probably only the ignition-coil and maybe a very low-powered set of lights - and where the engine once started would run for a long time so a low-powered dynamo could still produce enough output to recharge the battery.
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