Synth & Eurorack Parts / DIY

Our Synth & Eurorack Parts / DIY category is a curated list of items that are commonly found in synth/eurorack projects. The items and filters here do not represent our full lineup of parts. If you don't see what you are looking for, check out our main categories or send us a suggestion and we'll look into adding it.
Finishing Nut - For ⅜” Jacks and Pots, ⅜”-32 UNEF-2A
Package of 5
Colors Available:
High quality plated ⅜” nuts for jacks and potentiometers. These nuts are perfect for amplifier, pedal and synthesizer builds with high aesthetics or color theming. The ⅜”-32 UNEF-2A threading fits many ⅜” bushing parts such as Switchcraft ¼” jacks and CTS pots.
Starting at $0.59
Potentiometer Adapter Sleeve - Converts .125” shaft to ¼"
This nickel-plated brass adapter sleeve converts a 0.125 in. (3.17mm) shaft potentiometer to ¼" shaft (6.35mm), allowing for ¼" knobs to be used on a wider range of potentiometers. The cutout on the sleeve allows the set screw of the knob to secure directly to the shaft of the pot. Depending on the knob used, a longer set screw can be required.
$1.50
Potentiometer - Alpha, Audio, 9mm, Vertical, Dual Gang, 100K
Audio taper, vertical mount, dual gang Alpha pots with a 6.35mm shaft diameter. Dual gang pots are useful for stereo controls and other circuits requiring two separate pots moving in tandem. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-BX-DUAL for linear taper versions.
$2.55
Potentiometer - Alpha, Linear, 9mm, Vertical, Center Notch
Linear taper, vertical mount, Alpha pots with a 6.35mm shaft diameter and a center notch (detent). The center notch is useful for builds where the center position of the pot is commonly used such as panners or EQ controls. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.95
Potentiometer - Alpha, Linear, 9mm, Vertical, 11 Detents
Linear taper, vertical mount, Alpha pots with a 6.35mm shaft diameter featuring 11 detents across the rotation. The 11 detent versions are useful for builds where 1-10 settings are commonly used or if the pot is used as a rotary switch along with a microcontroller. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-A100K-11DET for an audio taper version.
$2.05
Potentiometer - Alpha, Linear, 9mm, Vertical, Dual Gang
Linear taper, vertical mount, dual gang Alpha pots with a 6.35mm shaft diameter. Dual gang pots are useful for stereo controls and other circuits requiring two separate pots moving in tandem. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-A100K-DUAL for an audio taper version.
$2.55
Potentiometer - Alpha, Audio, 9mm, Vertical, 11 Detents, 100K
Audio taper, vertical mount, Alpha pots with a 6.35mm shaft diameter featuring 11 detents across the rotation. The 11 detent versions are useful for builds where 1-10 settings are commonly used or if the pot is used as a rotary switch along with a microcontroller. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-BX-11DET for linear taper versions.
$2.05
Nut - CTS, 3/8-32, Nickel, for 450 Series Potentiometers
Replacement nut for CTS 450 series potentiometers and others.
  • 3/8-32 threading
  • Sold individually
$0.35
Potentiometer - Alpha, Audio, 9mm, Right Angle
Audio taper (log), right angle, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Potentiometer - Alpha, Linear, 9mm, Vertical
Linear taper, vertical mount, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Potentiometer - Alpha, 300kΩ, Linear, Knurled Shaft, 16mm
Miniature Alpha pot for guitars. 300K linear taper.
$1.50
Potentiometer - Alpha, Audio, 9mm, Vertical
Audio taper (log), vertical mount, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Nut & Washer - Panel, for ⅜" Potentiometers
Replacement nut and washer for pots with a ⅜" bushing diameter.
$0.70
Nut & Washer - Panel, for ⅜" Potentiometers and Jacks
Package of 100
Replacement nut and washer for pots and jacks that feature a ⅜" bushing with 3/8-32 threading. Sold in packs containing 100 nuts and 100 washers.
$25.00
Potentiometer - Alpha, Audio, Solid Shaft, 16mm
16mm solid shaft audio potentiometers. These pots are a great for any project. The smaller size is useful for builds with limited panel space such as guitar pedals, synthesizer modules, and adding modifications to equipment. Washer and nut included.
  • Threading: M7 x 0.75
  • Distance between terminals: 5 mm (0.197”)
  • Bushing Length: 6.5mm (0.256")
  • Shaft Diameter: 6.35mm ( 0.250")
  • Taper: Audio (Log)
Starting at $1.25
Potentiometer - Song Huei, Linear, 9mm, Tall
Linear taper, vertical mount, Song Huei pots with a 6mm shaft. These 9mm pots are popular in DIY guitar pedals, modular synthesizers, and other projects where space is limited. The knurled shaft features a painted indicator line so no knob is required. These tall versions have a 17mm shaft length and a total height of 25mm. For audio taper versions, see R-VSHL-AX. For center notched linear taper versions, see R-VSHL-BX-CN.
$0.86
Washer - CTS, Flat, for Potentiometers
Package of 10
Flat washer for 3/8" bushing. Perfect fit for CTS potentiometers. Package of 10.
$1.25
Potentiometer - Alpha, Audio, Solid Shaft, Long PC Lead, 16mm
Alpha Mini Pots with solid shaft and long PC mount terminals.
  • Threading: M7 x 0.75
  • Distance between terminals: 5 mm (0.197”)
  • Lead Depth from Panel: 10.7 mm + 5 mm (0.421” + 0.197”)
  • Lead Distance from shaft center: 16 mm (0.630”)
  • Lead Thickness: 0.5 mm (0.020”)
$1.10
Potentiometer - Alpha, Linear, Solid Shaft, Long PC Lead, 16mm
Alpha Mini Pots with solid shaft and long PC mount terminals.
  • Threading: M7 x 0.75
  • Distance between terminals: 5 mm (0.197”)
  • Lead Depth from Panel: 10.7 mm + 5 mm (0.421” + 0.197”)
  • Lead Distance from shaft center: 16 mm (0.630”)
  • Lead Thickness: 0.5 mm (0.020”)
$1.10
Potentiometer - Alpha, Linear, 9mm, Right Angle
Linear taper, right angle, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Potentiometer - Alpha, Reverse Audio, 9mm, Right Angle, 25KΩ
Reverse audio taper (antilog), right angle, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are poplar in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Potentiometer - Alpha, Reverse Audio, 9mm, Vertical, 50KΩ
Reverse audio taper (antilog), vertical mount, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are poplar in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.85
Potentiometer - Alpha, Audio, Knurled Shaft, 16mm
Miniature Alpha pot for guitars. Audio taper.
$1.50
Potentiometer Adapter Sleeve - Converts 6mm or 18T shaft to ¼"
This brass adapter sleeve converts a 6mm shaft potentiometer or 18T knurled shaft potentiometer to 1/4" shaft (6.35mm), allowing for 1/4" knobs to be used on a wider range of potentiometers. 1/4" tall.
$0.53