KN-138A / KN-139A Numerical Potentiometer Knob with 0–9 Scale for 6mm Shaft with Screw Lock

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Numerical Potentiometer Knob with 0–9 Scale for 6mm Shaft with Screw Lock The Numerical Potentiometer Knob with 0–9 Scale provides a clear and practical interface for controlling rotary potentiometers in electronic equipment. Its circular dial displays numbered positions from zero to nine, allowing users to identify, repeat, and compare adjustment levels more easily than with an unmarked knob. The contrasting black and silver appearance also gives control panels a clean, technical look. Designed to fit a standard 6mm potentiometer shaft, the knob connects directly to the control spindle and is held firmly using a screw-lock mechanism. This secure attachment helps maintain alignment between the selected number and the required operating position during regular use. Its broad, low-profile shape offers comfortable handling and supports smooth manual adjustment without making the panel feel crowded. Features: Clearly numbered 0–9 adjustment scale. Easy identification of selected control positions. Helps repeat previously used potentiometer settings. Secure screw-lock mounting system. Smooth and comfortable rotary operation. Wide circular dial for convenient handling. High-contrast numbering for improved visibility. Durable aluminum and plastic construction. Professional black and silver appearance. Suitable for control-panel installation. Provides a neat alternative to standard unmarked knobs. Simple installation and replacement. Specifications: Specification Details Product Type: Numerical Potentiometer Knob Control Type: Rotary Control Knob Scale Range: 0–9 Compatible Shaft Diameter: 6mm Shaft Type: Round Shaft Mounting Method: Screw Lock Material: Aluminum and Plastic Color: Black and Silver Scale Color: Silver Shape: Round Compatible Component: Rotary Potentiometer Installation Type: Panel-Mounted Potentiometer Accessory Applications: Audio Amplifier Controls. Laboratory Equipment. Power Supply Adjustment. Signal Generator Controls. Industrial Control Panels. Test and Measurement Equipment. Educational Electronics Projects. DIY Electronic Devices. Instrument Adjustment Systems. Equipment Repair and Replacement. Custom Control Consoles. Volume and Tone Controls. Package Contents: 1× Numerical Potentiometer Knob with 0–9 Scale (Depending on the Size) 1× Screw Lock — Pre-installed