Fulgerex is not sold in the U.S. so most of us don't know what you're talking about, but if they use a twin-coil type motor you definitely do not have the proper decoder. A Switch-It is only for a stall-motor type switch machine that applies constant voltage. The NCE Snap-It decoder is made to drive the solenoid switch machines.
Digitrax, CVP Products, and possibly Lenz and Zimo, also make decoders for twin-coil machines.
Ok i think it looks like i bought the wrong decoder!
I am trying to drive 2 filgerex switch machines form the NCE switch it.
The trouble is they are designed for the tortoise machine.
Does anyone have a clever circuit to get around this problem?
Peter