28-12-2021, 04:25 AM
If you are starting with the bulb connected, try running the dynamo (with field connected), at modest revs before attaching the bulb. A large low resis cold bulb my keep the sytem volts down so cannot start.
On the late 4 pole dyns with internal field resistor, if requird to run disconnected from the car system (and hence battery) the only suire way to nobble the dyn is to fully earth field and output. With a large cold bulb you may have a situation analogous.
On the late 4 pole dyns with internal field resistor, if requird to run disconnected from the car system (and hence battery) the only suire way to nobble the dyn is to fully earth field and output. With a large cold bulb you may have a situation analogous.