anyone have suggestions on making a parasitic choke for a sb220 amp. was thinking either using 68ohm 3w resistor and wrap 3-4 turns around it. metal oxide of course. Or use a couple of 3w 100ohm resistors in parallel and then parallel a small 3 turn coil about 3/8" diameter across these. either one will probably work. just wonder what everyone has used. i also have 100ohm 5 watt resistors metal oxide.