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.

Colors Available:
Starting at $0.85

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

Colors Available:
Starting at $0.99

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.

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

Colors Available:
$1.85

Colors Available:
Starting at $0.70

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

Colors Available:
Starting at $1.15

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.

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

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

Colors Available:
Starting at $0.85

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.

Radial ceramic capacitor.
- Voltage rating: 500VDC
- Tolerance: ± 10%
Starting at $0.20

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

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.

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.

Colors Available:
$0.99

Colors Available:
$0.95

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

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

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

Carling, SPDT mini toggle, 2 positions, ¼" mounting hole diameter, 0.354" bushing length.
$3.69