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.
Knob - Plastic, Set Screw, Small MXR Style, 0.75" diameter
Colors Available:
Small plastic knobs with set screw and brass insert. Similar to the small knobs used on many Dunlop / MXR pedals. These knobs have a fluted grip with an indicator line as well as a dot indicator on the skirt. Fits ¼” (6.35mm) pot shafts.
Starting at $0.85
Resistors - ¼ Watt, Metal Film, 1% tolerance
Metal Film resistors consist of a resistive element of an extremely thin layer of metal alloy vacuum deposited on a substrate. Precise and quiet. Package of 5. These resistors are perfect for pedal builders! 1/4 watt.
Starting at $0.45
package of 5
Knob - Chicken Head, mini, high-quality, brass insert, Set Screw
Colors Available:
High quality miniature chicken head knob with set screw for smaller applications. 0.90" long nose to tail. Mini Davies 2300 clone.
Starting at $0.99
Capacitor - Kemet, R82 Series, Polyester, 5mm Spacing
High quality R82 Series box film capacitors from Kemet. These polyester film capacitors have 5mm lead spacing, a minimum voltage rating of 63VDC, and a tolerance of ±10% or better. The small size, high specifications, and radial mounting makes them an excellent choice for PCB builds of pedals, synthesizer, and other audio equipment. The R82 Series is constructed of metallized polyester film with radial leads of tinned wire. Radial leads are electrically welded to the contact metal layer on the ends of the capacitor winding. The capacitor is encapsulated with thermosetting resin in a box of material meeting the UL 94V–0 requirements.
  • Voltage rating: 63 VDC Minimum
  • Lead Spacing: 5 mm
  • Capacitance tolerance: ±10% or better
  • Operating temperature range of -55˚C to +105˚C
  • RoHS compliance and lead-free terminations
  • Self-healing
Starting at $0.25
Diode - General purpose rectifier, 1A, 1N400X
A semiconductor device which passes current in the forward direction (from anode to cathode), and blocks current in the opposite direction.
Starting at $0.25
Knob - Aluminum, Set Screw, Short Line, 0.495" Diameter
Colors Available:
Anodized aluminum knob with short indicator line and set screw. This slim, solid aluminum knob has a straight knurled grip with a diameter of 0.495”. It also features a counterbore which allows it to hide pot bushings for a clean look. Fits ¼” (6.35mm) pot shafts.
$1.85
Knob - Small, Indicator Line, set screw
Colors Available:
The P-K380 is a high quality Davies 1510 clone. This classic design can be found on countless pedals, synths, amps and other equipment. The set screw uses a metal insert for additional stability and durability. This knob has an infilled painted indicator and fits 1/4" (6.35mm) pot shafts. The P-K380 pairs nicely with the color matched P-K801-BRASS-X knobs.
Starting at $0.70
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.
$0.65
Knob - Plastic, Set Screw, MXR Style, 1.0" Diameter
Colors Available:
Large plastic knobs with set screw and brass insert. Similar to the knobs used on many classic Dunlop / MXR pedals. These knobs have a fluted grip with an indicator line as well as a dot indicator on the skirt. Fits ¼” (6.35mm) pot shafts.
Starting at $1.15
Potentiometer - Alpha, Audio, Solid Shaft, 16mm
16mm solid shaft audio potentiometers. These pots are 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 $0.99
Potentiometer - Alpha, Linear, Solid Shaft, Right Angle, 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”)
Starting at $0.85
Potentiometer - Alpha, Linear, Solid Shaft, 16mm
16mm solid shaft linear potentiometers. These pots are 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: Linear
Starting at $0.99
Knob - Plastic, Set Screw, Pinched w/ Line, 0.630" Diameter
Colors Available:
Small plastic control knob with set screw and metal insert. This knob has a pinched grip similar to the Davies 1510 but features a smaller diameter and scooped cutout for a distinctive appearance. Fits ¼” (6.35mm) pot shafts.
Starting at $0.85
3.5mm Jack - Qingpu, Eurorack, Mono, Switched Tip, PC Mount
PCB mounted 3.5mm mono jacks commonly found in DIY Eurorack projects. These are the newest version from Qingpu Electronics featuring a square bushing plate for added durability. Hardware sold separately. See accessory items below.
$0.55
Knob - Black, White Line, Silver Top, Set Screw, Boss Style
Black knob with white line, silver top, set screw and brass insert. Fits ¼" shaft with set screw. These Boss style knobs come in a variety of sizes. See P-K383X for an unskirted version.
Starting at $1.50
Capacitor - 500V, Ceramic Disc, ± 10%
Radial ceramic capacitor.
  • Voltage rating: 500VDC
  • Tolerance: ± 10%
Starting at $0.25
Power Jack - DC Panel Mount, 5.5mm External, 2.1mm Internal
Colors Available:
½" panel mount with solder lugs. Round plastic with normally closed switch. For barrel plugs with a 5.5mm external diameter and 2.1mm internal diameter.
$0.99
IC Socket - Dual in-line package, 2.54mm Pitch, 7.62mm Spacing
IC component sockets for dual in-line package chips (DIP, PDIP, DIL, DIPP.) These sockets feature ladder style cases with tinned stamped and formed connections.
Starting at $0.35
Potentiometer - Alpha, Audio, Solid Shaft, Right Angle, 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”)
$1.25
Nut - Knurled, for mounting Qingpu 3.5mm jacks
Knurled, slotted nut for W-QP-419GR and W-QP-518MA 3.5mm jacks. See W-QP-NUT-H for the hex version of this nut. See W-QP-WASHER for compatible washer See S-TND-2X for nut driver tool
$0.15
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.
$1.90
Washer - CTS, Flat, for Potentiometers
Flat washer for 3/8" bushing. Perfect fit for CTS potentiometers. Package of 10.
$1.25
package of 10
Knob - Scalloped Edge, Indicator Line, Set Screw, Brass Insert
Colors Available:
The P-K801-BRASS is a custom built Davies 1900H clone. This knob features a brass insert in addition to a thick plastic build resulting in the most solid version of this knob available. The thick plastic eliminates the unfortunate hairline fractures that can commonly be found near the set screw of other versions. The P-K801-BRASS has an infilled painted indicator and fits ¼” (6.35mm) pot shafts.
$0.95
Knob - Plastic, Set Screw, Skirted Pointer, 1.125" Diameter
Colors Available:
Large black plastic control knob with set screw and brass insert. This distinctive pointer knob is similar to the selector knobs used on original MiniMoog and Moog modular synths. It features a triangular pointer, a radial brushed metal top, and a line indicator. The large skirt has a diameter of 1.125 inches. Fits ¼” (6.35mm) pot shafts.
$1.55