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 $0.99

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

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

Package of 5
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

Colors Available:
Starting at $0.70

Colors Available:
Starting at $0.85

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

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

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.

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.

The FatKeys™ SSI2164 is perhaps the most flexible VCA available, with four independent channels for lowest cost-per-VCA. The user-selectable mode control allows Class A, AB, or intermediate biasing, and current inputs and outputs provide great design freedom. Ideal for voltage-controlled filters. The SSI2164 is a versatile VCA building block for high-performance audio applications. Four independent channels provide voltage control of current-mode inputs and outputs for a gain range from +20dB to –100dB, with control provided by a ground-referenced –33mV/dB constant. The SSI2164 will directly retrofit existing SSM/V2164 positions while offering improvements that include significantly lower overall distortion, on-chip protection against asymmetrical power failure, and a substantial increase of input current handling. The device offers considerable flexibility for a wide range of design goals and applications.

Hex nut for W-QP-419GR and W-QP-518MA 3.5mm jacks. See W-QP-NUT-K for the knurled, slotted version of this nut. See W-QP-WASHER for compatible washer

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

Colors Available:
Starting at $1.15

Colors Available:
New!:
$1.85

Colors Available:
$0.20

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

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.

Low profile Lumberg panel mount barrel jack with solder lugs. This high quality jack is the perfect size for smaller builds where additional space is necessary. The Lumberg low profile DC jack is also great for builds where aesthetics are a priority. For use with barrel plugs with a 5.5mm external diameter and 2.1mm internal diameter. Mounting nut included.
$1.55

Carling, SPDT mini toggle, 2 positions, ¼" mounting hole diameter, 0.354" bushing length.
$3.35

Colors Available:
$0.99

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

Colors Available:
New!:
$1.55