Just to add...
It's a gimbal arrangement. (You'll have to google it, I couldn't find a suitable picture)
Two micro-switches sense either forward or backward position and are actuated by the outer portion of the gimbal rotating on its axis.
A pot or hall sensor (looked like a pot to me) senses left/right movement and is actuated by the inner portion of the gimbal being rotated on its axis.
The gates are located in the bottom on the shifter body and just looks like a gated guide for the end of the shifter rod.
The "in gear" feeling is provided by a ball detent, much like the TH8RS. As the outer portion of the gimbal rotates, it moves a plate with detents in it across the ball detent. The plate is removable. The ball detent is adjustable.
Side to side tension could be adjusted by swapping the torsion spring out for a stronger one.
As for the circuit, it's only complex enough to provide a specific voltage output when in R, 1, 3, 5, 7 or 2, 4, 6, based on the switch pressed. The left/right voltage is provided by the pot output.
Anything else?
