50K 3Pin Tone Potentiometer (B50K) — Rotary Audio Control
The go-to potentiometer for audio tone control, volume adjustment, and amplifier circuits.
The 50K 3Pin Tone Potentiometer (also known as B50K) is a high-quality rotary variable resistor engineered for precise resistance control in audio and electronic applications. Whether you’re building a guitar amplifier, DIY speaker system, FM radio, or a custom audio circuit, this potentiometer delivers smooth, consistent performance every single time.
Key Specifications
- Resistance Value: 50K Ohm (50,000Ω)
- Type: Single Linear Taper (Type B)
- Pins: 3-Pin Terminal
- Shaft Diameter: 6mm (Knurled)
- Shaft Length: 10mm
- Mounting Thread Diameter: 7mm
- Material: Carbon Film with Metal Body
- Model / Alias: B50K / WH148 B50K
Why Choose This Potentiometer?
- Smooth Rotation: Carbon film construction ensures zero scratchy movement for precise audio tuning
- Durable Build: Metal housing resists wear even in long-term projects and professional setups
- Universal Fit: Compatible with breadboards, PCBs, and panel mounting
- Tone-Optimized: Specifically suited for tone, treble, and bass control in amplifier circuits
- Wide Application: Works in Arduino projects, audio mixers, signal generators, and more
Applications
- Guitar & Bass Amplifiers
- DIY Audio Mixer / Volume Control
- FM Radio & Recorder Tone Circuits
- MP3 Player Volume Adjustment
- Arduino / Raspberry Pi Projects
- Signal Level Control in Circuits






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