I have a NOS Wico leaf joystick - red ball top.
I believe it to be the same as the ones I have seen sold as Robotron sticks.
It is an 8-way. The instructions say replacing the .6" actuator with a .5" makes it a 4-way.
I found a second .6" actuator and sanded down to approximately .5" and it seems to work well as a 4-way.
I received this in a sealed box and have opened it and mounted it for testing but I still consider it as new since it really has not been used.
I have an Arkanoid spinner.
It has the optical board but the board does not work.
I connected it to an optipac and can sometimes get movement but usually not.
The board can most likely be repaired or I think the board that Oscar sells for his spinners can be made to fit for around $8.
It spins fine.
Here are some things I am looking for:
Oscar Pro spinner (maybe 2),
Universal Happ joystick or E-Stick or T-Stick from Ultimarc,
a Red trackball.
If anyone is interested in trades I can email pics of the items.
If anyone wants to make cash offers you can leave me a message with your offer,
Thanks,
Joel