I plan on making a 500mH inductor, but I'm not sure how big it needs to be to allow the space for the number of turns it needs with a reasonable size wire. (Reasonable size meaning it is readily available and not so small soldering burns through the wire.)
TOROID CORE HAS DIFFERENT SIZE AND DIFFERENT FERRITE COMBINATION THAT AFFECT THE TURNS RATIO TO INDUCTANCE. THE BEST WAY TO DO IT BY MEASURE THE FINISHED CHOKE WITH AN INDUCTANT METER, AND THEN EITHER ADD OR REDUCE THE TURNS. WIRE SIZE IS THE KEY FACTOR TO DETERMENT ITS CURRENT RATE. 500MH WOULD NOT BE A SMALL TOROID CHOKE, HAS AT LEAST SIZE DIA.1.5 INCHES. TRY AWG#30 1200 TURNS.
