Hi! I got my hands on a couple of toroids, two 2.25" OD and a 2" OD toroid. I was hoping someone could help me out in calculating the power throughputs for each @100kHz. I am not sure about the material though as I bought them from a local junkyard.
Alot of it also depends on the winding ratio. More secondary then primary equals more voltage which means more amps which equals more watts for a given ohm load.