As someone with only a basic understanding of electrical things, please bear with me.
I'm trying to convert the lighting circuit on a vintage motorcycle from 6v AC to 12v DC (so I can use LED headlights etc.)
On this particular model, a magneto rotates around fixed coils. Originally 1 coil was designed to produce 6v and around 40 watts AC.
I have added another identical coil, wired them in parallel and connected them to a 6v to 12v DC regulator/rectifier (specifically designed for 6v to 12v DC motorcycle conversions - I'm sorry I don't have the specs for this unit).
When all wired up and the engine was running I measured around 3v from the regulator. When the RPM was increased this dropped to around 2v (I would have expected it to rise!)
Should I be wiring the coils on series? Or will this make no difference? I'm confused. There is no earth leakage. I understand that there will be some loss from the rectifier.
Also, what does it mean if something runs 'AC/DC simultaneously.'?
Perhaps not your regular type of question on here but any help or advice would be enormously appreciated!