Extra filter components for Jack Smith filter:

2  FT50-61 cores
#22 magnet wire
(wind 15 turns of wire on each core)

2  .027 uF polyester capacitors (the end caps)

connected in parallel the following two caps form a .0363 uF capacitor (the "middle" one)
.033 uF polyester capacitor 
.0033 uF polyester capacitor

49.9 ohm 1% terminating resistor