how to use potentiometer as variable resistor and voltage divider - YouTube
3362P-1-103LF Bourns Inc. | Potentiometers, Variable Resistors | DigiKey
TOP-UP INDUSTRY CORP. -- POT. W/ LED
Panel Mount 10K Dual Linear Potentiometer w/ On-Off Switch [10K Dual Linear w/ Switch] : ID 3393 : $1.75 : Adafruit Industries, Unique & fun DIY electronics and kits
TOP-UP INDUSTRY CORP. -- 12mm size Potentiometers
What Is a Potentiometer? - dummies
Panel Mount 10K Log Potentiometer w/ On-Off Switch [10K Log w/ Switch] : ID 3481 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits