A 75mm straight-line slide potentiometer (fader) with two independent 10KΩ channels, the kind used for volume and level control in audio mixers, DJ consoles and lighting boards. It's a B-type (linear taper) pot, so resistance changes evenly across the full length of travel, and the twin tracks let you control a stereo pair - or two separate signals - from a single slider.
- Dual-channel (stereo) - two independent 10KΩ tracks in one body
- B-type linear taper - even resistance change end to end
- 75mm body-length straight slide (linear-motion) fader
- 6 solder terminals - 3 per channel (two track ends + wiper)
- Metal slider shaft, 15 x 4 x 1.2mm - fits standard fader caps
- M2 mounting holes at both ends for panel fixing
- 0.25W rated, ±20% tolerance
- Low sliding noise (<68mV) and 100% resolution
Specifications
What's in the box
The bare fader only - no slider cap/knob and no wiring is included. Fader caps and finger grips are a separate accessory sold to suit your panel and colour scheme.
Great for
Wiring it up
- Identify the two channels
The 6 pins split into two groups of 3 - one group per channel, on opposite sides of the body. Each group is (track end A) - (wiper) - (track end B).
- As a variable resistor or divider
Wire the two outer end pins across your signal or supply, and take the output from the centre wiper pin. Swapping the two end connections reverses the direction of travel.
- Reading it with a microcontroller
Connect one end to GND, the other to your 3.3V or 5V rail, and the wiper to an analog input (e.g. an Arduino A0 or an ESP32 ADC pin). Move the slider and read the changing voltage.
- Using both channels
The two tracks are electrically independent - use them as a matched stereo pair, or as two completely separate controls if you prefer.
Common questions
Is this a linear or audio (log) taper fader?
It's a B-type, which is a linear taper - resistance changes evenly across the travel. If you're building an audio volume control and want the perceived-loudness curve, you'd normally choose an A-type (log) fader instead. B-type is ideal for lighting, control voltages, microcontroller inputs and anywhere you want a straight, even response.
What does "dual channel" mean here?
There are two separate 10KΩ resistive tracks inside the one body, each with its own set of three pins, moved together by the single slider. That lets one fader control a stereo (left/right) pair, or two independent signals at once.
Does it come with a slider cap/knob?
No - this is the bare fader only. The metal slider shaft is 15 x 4 x 1.2mm and accepts standard push-on fader caps, which are sold separately so you can match your panel.
Can I use it with an Arduino or ESP32?
Yes. Wire one track as a voltage divider (ends to GND and your logic rail, wiper to an analog input) and read the slider position as an analog value. Keep the rail within your board's ADC range - 3.3V for an ESP32, up to 5V for a classic Arduino.
How is it mounted?
There's an M2 mounting hole at each end of the body, so it bolts to a front panel or bracket. The solder terminals sit underneath for wiring or PCB mounting.
Good to know: This is a standard B103 (10K, linear-taper) dual-channel slide fader - a generic industry part, not a branded studio component. Being a B-type it has a linear response, which suits lighting, control-voltage and microcontroller use; pick an A-type (log) fader if you specifically need an audio-loudness curve for a volume control. Ships as the bare fader with no cap or wiring. Every unit is checked before it ships from our Te Awamutu stock.