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.
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
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
PCB - SMD to Thru-Hole Adapter, SSOP-20 to DIP-20
PCB for converting SMD SSOP-20 packages to through hole DIP-20 footprints. Solder the device to this PCB then attach pin headers (sold seperately) to connect to through hole footprints on PCBs, breadboards and IC sockets.
$1.99
package of 5
Knob - Davies, 1470, Daka-ware, Large, Pointer
Colors Available:
High-quality USA made knobs from Davies Molding. The large 1470 pointer knob is made of solid phenolic and features a fine ridged grip with a distinctive point. This classic knob has been used on a variety of guitar pedals such as the Klon and countless EHX effects.
  • Height: 0.50 in.
  • Length: 1.13 in.
  • Fits ¼" shaft with set screw
Starting at $1.99
Resistor - PR01, Vishay BC, 1 Watt, Power Metal Film
High quality metal film resistors from Vishay / BC Components. PR01 resistors are rated for 1W but have a compact 2.5x8mm package. These resistors look great in vintage and vintage-style builds and have been used in high-end Marshall amplifiers and other audio equipment. Construction: A homogeneous film of metal alloy is deposited on a high grade ceramic body. After a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper or copper-clad iron are welded to the end-caps. The resistors are coated with a red, non-flammable lacquer which provides electrical, mechanical and climatic protection. This coating is not resistant to aggressive fluxes and cleaning solvents.
$1.95
package of 5
PCB - SMD to Thru-Hole Adapter, SOIC-16 to DIP-16
PCB for converting SMD SOIC-16 packages to through hole DIP-16 footprints. Solder the device to this PCB then attach pin headers (sold seperately) to connect to through hole footprints on PCBs, breadboards and IC sockets. This adapter is also compatible with SOP-16 packages.
$1.95
package of 5
Op-Amp - TLC274, Quad, Precision, LinCMOS, 14-Pin DIP
TLC274 quad op amp in a 14-pin DIP package. The TLC274 quad operational amplifier combines a wide range of input offset voltage grades with low offset voltage drift, high input impedance, low noise, and speeds approaching that of general-purpose BiFET devices. These devices use Texas Instruments silicon- gate LinCMOSTM technology, which provides offset voltage stability far exceeding the stability available with conventional metal-gate processes. The extremely high input impedance, low bias currents, and high slew rates make these cost-effective devices ideal for applications which have previously been reserved for BiFET and NFET products.
$1.95
Transistor - 2N3566, Silicon, TO-105 case, NPN
The 2N3566 is a silicon NPN transistor in a TO-105 case. The 2N3566 is primarily intended for general purpose amplifier applications.
$1.95
Switch - GØRVA, Mini Toggle, DPDT, 2 Position, Solder Lugs, Medium Bat
Premium two position DPDT mini toggle switches from Gorva Design. The Bascular Mini switches have a medium 7.5mm actuator length. These switches feature silver plated copper contacts. RoHS compliant & lead-free. Mounting hardware included. Details
  • 8.89 mm bushing length
  • Medium bat
  • 2-Position On/On
  • ¼" mounting hole diameter
  • Double pole/Double throw (DPDT)
  • Solder lugs

Features:
  • Power Rating: DC9V, 1A
  • Contact Resistance: <10mΩ
  • Insulation Resistance: 1000MΩ Minimum
  • Dielectric Strength: 1000V RMS @ Sea Level
  • Operating Temperature: -40°C ~ +85°C
  • Electrical Life: 40,000 Cycles
  • RoHS & Lead-free
$1.95
Transistor - BC148C, Silicon, Lockfit case, NPN
BC148C NPN transistor in a rare Mullard Lockfit package. The BC148C is the equivalent of a BC108C but in the Lockfit package rather than a TO-18. The BC148C was used in a variety of audio and radio equipment and works well for fuzz and other effects.
$1.95
Switch - GØRVA, Submini Toggle, DPDT, 3 Position, PC Pins, Medium Bat
Premium three position DPDT submini toggle switches from Gorva Design. The Bascular Sub Mini switches have a medium 7.37mm actuator length. These switches feature silver plated copper alloy contacts. The bushing is smooth and the switch is secured with the mounting bracket on the PCB. RoHS compliant & lead-free. Details
  • 5.59mm non-threaded bushing
  • 3-Position On/On/On
  • 4.95mm panel hole diameter
  • Double pole/Double throw (DPDT)
  • PC Pins

Features
  • Power Rating: DC9V, 1A
  • Contact Resistance: <20mΩ
  • Insulation Resistance: 1000MΩ Minimum
  • Dielectric Strength: 1000V RMS @ Sea Level
  • Operating Temperature: -40°C ~ +85°C
  • Electrical Life: 30,000 Cycles
  • RoHS & Lead-free
$1.95
Transistor - 2N1309, Germanium, TO-5 case, PNP
2N1309 PNP germanium transistors. The 2N1309 is a popular PNP for fuzz pedals and other effects. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.
$1.95
Audio Power Amplifier - LM380, Class-AB, 2.5W, 14-Pin DIP
LM380 power amp in a 14-pin DIP package. The LM380 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically self-centers to one-half the supply voltage. The output is short circuit proof with internal thermal limiting. The package outline is standard dual-in-line. The LM380N uses a copper lead frame. The center three pins on either side comprise a heat sink.
$1.95
Op-Amp - AS301AN, Alfa, Single, 8-Pin DIP
The AS301AN is Alfa’s version of the LM301A in an 8 pin DIP package. The AS301A is a general purpose operational amplifier. This amplifier offers many features which make its application nearly foolproof: overload protection on the input and output, no latch-up when the common mode range is exceeded, and freedom from oscillations and compensation with a single 30 pF capacitor. It has advantages over internally compensated amplifiers in that the frequency compensation can be tailored to the particular application. For example, in low frequency circuits it can be overcompensated for increased stability margin. Or the compensation can be optimized to give more than a factor of ten improvements in high frequency performance for most applications. In addition, the device provides better accuracy and lower noise in high impedance circuitry.
$1.95
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
Diode - 1N34A Germanium
The 1N34A Germanium diode is an old standby in electronics. Widely used for detecting the rectifying efficiency or for switching on a radio, TV or stereo etc.
$1.95
Switch - GØRVA, Mini Toggle, DPDT, 3 Position, Solder Lugs, Medium Bat
Premium three position DPDT mini toggle switches from Gorva Design. The Bascular Mini switches have a medium 7.5mm actuator length. These switches feature silver plated copper contacts. RoHS compliant & lead-free. Mounting hardware included. Details
  • 8.89 mm bushing length
  • Medium bat
  • 3-Position On/On/On
  • ¼" mounting hole diameter
  • Double pole/Double throw (DPDT)
  • Solder lugs

Features:
  • Power Rating: DC9V, 1A
  • Contact Resistance: <10mΩ
  • Insulation Resistance: 1000MΩ Minimum
  • Dielectric Strength: 1000V RMS @ Sea Level
  • Operating Temperature: -40°C ~ +85°C
  • Electrical Life: 40,000 Cycles
  • RoHS & Lead-free
$1.95
Knob - Rogan, PT Series, 6PS, Extra Large, Skirted, Pointer, D-Shaft
High-quality USA made knobs from Rogan Corp. These extra large, puck-shaped, skirted pointer knobs from Rogan’s PT Series feature a soft rubber grip molded over a solid polymer knob. PT Series knobs can be found on synthesizer modules from Make Noise, Mutable Instruments and others. Fits 6mm D-shafts.
  • Height: 0.63 in.
  • Diameter:1.25 in.
  • Fits 6mm D Shafts
  • Indicator on round side of D-shaft

A variety of different sizes are available from the PT Series.
$1.95
Potentiometer - Alpha, Linear, 9mm, Vertical, Knurled Shaft
Linear taper, vertical mount, Alpha pots with a 6mm T18 knurled shaft. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.90
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.
$1.90
Potentiometer - Alpha, Linear, Knurled Shaft, Right Angle, 16mm, Dual, 10kΩ
10kΩ dual-gang 16mm potentiometers with a T18 knurled shaft and a linear taper. These pots have right angle PCB mount terminals. 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”)
  • 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”)
$1.90
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.
$1.90
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.
$1.90
Potentiometer - Alpha, Audio, 9mm, Vertical, D-Shaft
Audio taper (log), vertical mount, Alpha pots with a 6mm D shaft. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.
$1.90