13-11-2020, 02:16 PM
If you connect the two (D and F) then put a volt meter between them and the dynamo body, you should get a voltage. This will be an unregulated output and will rise with revs to probably around 20 volts if the unit is good. DON'T run it for long, as it could overheat. My 6volt dynamo has happily been putting out 12volts with electronic regulation.