[BAracer]

Right...fresh start! I have removed the Scalextric powerbase from the track, and are now powering the rails from my 12v power supply.

Woodcote has established that Scalextric powerbase are "Common positive (negative wiring)", so I have used this as a reference for this exercise.

Slot-it analogue cartridge manual states that for "common positive (negative wiring)": -

- Jumper J1 is left open (I have interpreted that as removing the bit that slides along the two contacts)
 
- the following wiring arrangement should be followed
   



The result of this is that when I switch the power supply on, full power is going to the track regardless of trigger position.



I think I might ask Slot.it for help...