I've got wire and a winding machine built. I'd like to know how to wind a 12 volt coil
or one that will put out 6 volts.
The coils I've made will put out 50 to 100 volt ac it will light 12 volt dc LED trailer
lights very brightly with out harming them still won't light an incandescent bulb bright enough to use. I've played around with diodes, caps, resistors etc. Not knowing much about these
things I'd like to know what needs to be made to work.
I've rewound the mag coil I can get them to run the engine but have not improved the white wire
out put. Seems the white wire has to have no more than 2.20 ohms reading over that it effects the ignition way to much kills the thing.
I've found that by using 28 gauge wire for the white wire winding it will allow the engine to idle
real slow with the lights on, but the light is dim even at higher rpms.
I've completed one coil with 26 gauge wire to test so far only on the testing rig I made it will make the head light brighter but I don't know how it will work on the engine seems to have good spark at the slower rpms. Its snowed here so running the bike will have to wait, 3' drifts in the driveway will make it way too tough to try.LOL. I hate snow!!!
any idea how the ebay coil is made? core wire size amounts etc.
To Norman-
Are you trying to create a system with a stable 6v or 12v output? If so, a battery with a rectified charging circuit is the best way to go. You are never going to get a very stable AC output without some fancy circuitry.
So you get 50-100vac off your custom lighting coil? I’m not sure how your measuring it, RMS, average, peak, etc? But that is where the problems often comes in. Try this instead: Put a diode on the output wire and run it to a capacitor positive pole. Ground the negative capacitor pole and run the engine up to operating rpm briefly. Measure the DC voltage on the capacitor. That will give you the AC peak voltage. Try the same thing with the polarity of the diode and capacitor reversed. The readings may not be symmetrical. Do not have any other lights or load connected during the test.
To determine the correct direction to use, hook the diode to the output wire and short the other end of the diode to ground after starting the engine. If the motor dies, reverse the diode and try again. If the motor just slows down a small amount, that is the direction to use.
Try a heavier gauge wire with fewer windings and see what the output voltage is.