DIY Control PC Volume, Photoshop, Lightroom, Premiere Pro & more using Arduino and Rotary Encoder [Volume knob] - Codeometry
adding an LED to a knob | Headphone Reviews and Discussion - Head-Fi.org
Remote volume control knob for old preamp | diyAudio
DIY Volume Control - YouTube
ERH India (Pack of 5 pcs) 47k Volume Control Variable Resistor Potentiometer 47k Pot for DIY and Amplifier Kits Knob : Amazon.in: Industrial & Scientific