What would happen if I used a solid steel rod, maybe 1" diameter, as a coil core? will it still work in the frequency range required?
How do you determine the inductance when winding a simple coil so that you can wind several different coils and have the same resonant frequency for each, even when they are made of different sized wire?
ei
-If all the coils have the same diameter, and same number of turns, would they resonate at the same frequency even when made of different gauge? (or how would you accomplish this?)