I'm just re hashing a Hornby Duchess of Sutherland R066 chassis I've acquired and can't remember how the power is collected. Looks like its picked up from the tender wheels and returned via the driving wheels on the loco.on the other side. Does this sound right? There is a contact above one of the driving wheels or has this something to do with it or, what appears to be, a bulb above the cylinders, whatever that does.
Any help much appreciated John