A New Tone Control Concept — or Is It?

A tone control experiment using a pot to fade between high and low capacitor values.

Passive tone control circuit -HARDWARE - Share - PCBWay

Passive tone control circuit

Standalone Tone Control

Passive Tone Controls Explained

Passive tone control circuit

TDA1524 stereo tone control circuit with PCB Layout - Soldering Mind

Karaoke Tone controll V2 - Share Project - PCBWay

Guide to Single Knob Tone Controls – Chasing Tone

HI-FI Tone Control Circuit (High Z Input) – Electronic Circuit Diagram

Basic electric guitar circuits (part 3) - WorkbenchFun.com

AMPLIFIER TONE CONTROL : 3 Steps - Instructables