A Dual Gang Linear Potentiometer (B1K Dual Rotary Variable Resistor) is a 6-terminal variable resistor component engineered to adjust two independent electrical channels simultaneously via a single rotating shaft. Constructed with two stacked carbon composition resistive tracks, turning the knurled metal shaft moves both internal wipers in sync to maintain identical resistance proportions across both channels. Featuring a "B" code designation, it exhibits a linear taper where resistance changes proportionally with shaft rotation.

This product is featured by Famephase Electronic Accessories as an essential variable control for stereo audio equipment, dual-channel volume controls, balanced tone adjustment, and multi-rail reference voltage control circuits.