The original simulator has a robust implementation, consisting of heavy-duty bell-cranks, pivot bearings and push-rods. Each is mechanically linked so that it slides one of 3 linear potentiometers. Resistance measures between a minimum of about 600 ohms, to approximately 8K ohms. The aileron potentiometer has some movement limitation, so it might have different measurements.

In the photo, the fingers point to the two active connection points (5 and 6).