Toroid question

i am looking for a part that i can go buy that will work in place of the toroid coil in this circuit i had ordered this from mouser but it wont work... i dont want to wrap my own i would like to just buy one,.. any help would be great

You need an inductor with two windings. See page 982, 998, 1000, 1002, 1022, and 2302.

You might be able to use the isolation transformer from an old Ethernet card.

see my discussion on this circuit on Talking Electronics website under: LED Torch Circuits.
Adding a capacitor reduces the current to 30% of the original.

**broken link removed**