PTL20-15G1-203B2 is a slide potentiometer with integrated LED designed for professional audio applications such as mixing consoles, drum machines, keyboards, synthesizers, and equalizers. The device features a 30 mm travel length with a standard resistance range of 1 kO to 1 MO and a linear audio taper, delivering 0.1 watt power rating at this travel specification. It incorporates a carbon element construction with ±20% resistance tolerance, 100 megohms minimum insulation resistance at 250 VDC, and 300 VAC dielectric withstanding voltage. The potentiometer includes a center detent option and is available in multiple LED colors (red, orange, green, amber, and white), making it ideal for professional audio equipment requiring both precise control and visual feedback in mixing and signal processing applications.