WinKey USB SMT Assembly and Operation Guide - Version 1.5 12/26/2017 Pg 6
8)
That completes the circuit board assembly. Now add the speed pot and battery holder.
Figure 7 - Completed WKUSB-SMT Rev 01 PCB
9) Now wire the speed pot to the PC board as shown in figure 8. Cut two 7 inch lengths of
wire and attach to J2. If you don’t plan on using the speed pot short the two pads of J2
with a short piece of resistor lead.
Figure 8 – Speed Pot Connections