How to Wire a Potentiometer: 10 Steps (with Pictures) - wikiHow
Panel Mount Right Angle 10K Linear Potentiometer w/On-Off Switch [10K Linear w/ Switch] : ID 3395 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Original New 100% Rk09 B50k With Press Fever Volume Potentiometer 9pin Handle 13mm With Midpoint (switch) - Switches - AliExpress