It also says to cut the three lengths of enamelled wire to 20cm. I did this, then with the screwdriver turned it 60 times, to find it was only long enough to get seven turns, possibly eight with short tails, on the toroid. Luckily I had a?filter kit untouched so raided that to try again, making the lengths 30cm, and this time there was about 5cm sans tails over after the ten turns. It might be wise to put 25cm as the length in the manual as it's always easier to remove than to add ;)
Robbie M1ROK
