I would need help on this one. I'm about to try something, but i just want to be sure i'm not trying something stupid with high voltage.
So i'll put the black and red top wire directly on 120v AC (wall plug) and put a 1MΩ between each wire from the secondary coil (bottom wires, red green and yellow) and then take a read on voltage across the resistor (if my math are exact, it should let a maximum of 24µA if the voltage is 240V, which is what i'm trying to get at the end, and i guess this amp. is a safe working zone
). I'll then divide 120v by whatever voltage i get from the 3 sec. coil and it should give me the turn number ratio. So question #1, is that all make sens?
Let's say i find a sec coil with a 1:2 ration, could i plug the 120v directly to that coil and then collect 240v on the secondary, directly plug to my heater, without any additional hardware? That's question #2.
And question #3: What will happen if i plug 120v to the red/black primary coil wire with no resistor on any other coil? Can i assume the primary coil inductance will block the 120v AC or is there a risk of frying the coil with too much current?
Any help/confirmation with one of those 3 question will be appreciated. Thanks...