| 1 | Lock the hook pin. | |
| 2 | The wiper of the potentiometer is connected directly to the spindle. | |
| 3 | I quickly fashioned a ladder out of wooden dowels and nylon rope. | |
| 4 | As the component slides along its axis the pin forces it to rotate. | |
| 5 | The cage is connected by a spindle to the torque spring and pointer. |