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.
Reverb Module - Accutronics Belton, Digi-Log, horizontal, mini
A great digital reverb sound that easily replaces a spring reverberation unit. Small package is half the size of the P-RBTDR-1H-X
$14.95
Switch - Carling, Mini Toggle, SPDT, 2-Position, PC Pins
Carling mini-toggle switch, SPDT, PC Pins. 2-Position.
  • 0.354" bushing length
  • 2-Position On/On
  • ¼" mounting hole diameter
  • Single pole/Double throw (SPDT)
  • PC mount pins
$2.50
Op-Amp - TL072, Dual, Low-Noise, JFET Input, 8-Pin DIP
The TL072 is a high speed JFET input dual operational amplifier incorporating well matched, high voltage JFET and bipolar transistors in a monolithic integrated circuit. The device features high slew rates, low input bias and offset current, and low offset voltage temperature coefficient.
$0.70
Capacitor - 50V, Radial Lead, Electrolytic
Package of 5
High quality, radial leaded, aluminum electrolytic capacitors rated at 50VDC.
$0.49
Capacitor - 0.002uF, 1000V, Ceramic Disc, ± 10%
0.002uF ceramic disc capacitor rated for up to 1kV, ± 10% tolerance.
$0.25
LED - 3mm diameter, diffused lens, 3.6 mCd
Package of 5
Colors Available:
Lens Diameter: 3 mm Overall Height: 5.4 mm Lens Type: Diffused Multiple color options available.
$0.70
Wire - 22 AWG Solid Core, PVC, 600V, 50 Foot Roll
Colors Available:
600V solid wire. UL style 1015, rated to 105 degrees C. Perfect for new projects, rewiring electrical equipment, or use in breadboards, perfboard, and veroboard/stripboard.
$8.95
Keyboard Key - Korg, "C" & "F" keys
For use with M1, Trinity, Triton, 01-W, Wavestation and i30 keyboards.
$10.00
Transistor - 2N5088, Bipolar, General Purpose
2N5088 NPN Bipolar Junction Transistor in TO-92 package
$0.20
Wire - 22 AWG Solid Core, PVC, 600V, Variety Pack
Variety pack, 10 feet for each color. 6 colors, 60 feet total. Great for color-coded wiring with smaller quantities.
600V stranded. Strands are tinned individually. See photos for detail. UL style 1015, rated to 105 degrees C. Perfect for new projects or rewiring any electrical equipment.
Included colors:
  • Black
  • Red
  • Green
  • White
  • Yellow
  • Blue

See S-W33 for 50 foot rolls of individual colors.
$11.50
Reverb Module - Accutronics Belton, Digi-Log, Adjustable Decay
A great digital reverb sound that easily replaces a spring reverberation unit. Stereo outputs may be summed for mono operation. Simple interface: input, output, +5V, and ground
$15.95
3.5mm Jack - Qingpu, Eurorack, Stereo, PC Mount
PCB mounted 3.5mm stereo 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.
$0.45
Reverb Module - Accutronics Belton, Digi-Log, horizontal mount
A great digital reverb sound that easily replaces a spring reverberation unit. Simple interface requires only input, output, +5V, and ground. Output requires no external capacitors.
Starting at $12.95
Op-Amp - TL062, Dual, Low-Power, JFET Input, 8-Pin DIP
Dual low power opamps in an 8-pin DIP package. The TL062 offers a high input impedance and 1MHz bandwidth.
$0.28
Capacitor - 100V, Polyester Film Inductive
Package of 5
Polyester film dielectric, aluminum foil electrode, copperply leads and epoxy resin coating in inductive type.
  • Small size, light weight and low cost
  • Dissipation factor is small because the leads are directly welded to electrodes
  • Epoxy resin vacuum-dipped enhances the mechanical strength, humidity resistance
  • 100 volt rating
  • Operating temperature range: -40°C to +85°C.
  • Package of 5
Starting at $0.45
Screw - M3, Painted, Combination Head, Binding, 6mm
Package of 5
Colors Available:
Combination Drive, Colored Head Binding Screws, 6mm, M3, zinc. Designed to go through a hole or nut that is pre-tapped to form a mating thread for the screw. Phillips drive is the most common drive used and is designed to "camout" when the screw reaches optimum tightness, thus preventing damage to the screw head.
$1.75
Felt Strip - 51.5", for Korg & Yamaha Keyboards
For Yamaha DX7, DX7 II, FX20, Korg M1, Trinity and T Series.
$5.65
Audio Power Amplifier - LM386N-1, Low Voltage
LM386 Low Voltage Audio Power Amplifier The LM386 is a mono low voltage amplifier that can be used in a variety of applications. It can drive loads from 4 Ω to 32 Ω. The gain is internally set to 20 but it can be modified from 20 to 200 by placing a resistor and capacitor between pins 1 and 8. As this is an Op Amp it can be used in different configurations to fit in several applications. The internal gain setting resistor allows the LM386 to be used in a very low part count system. In addition a series resistor can be placed between pins 1 and 5 to modify the gain and frequency response for specific applications. These are found in many small audio amplifiers and even tiny pedal sized guitar amplifiers! There are tons of possibilities for this little Op Amp.
$1.25
Multi Processor Module - Belton, BTSE-16FX
The BTSE-16FX Effect board provides 16 different digital audio effects to be used for mixers or other audio applications that require sound enhancement. Equipped with the superb quality digital effects processing engine which it adds that extra punch needed to make audio presentations truly stand out.
$29.95
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
$0.07
Potentiometer - Alpha, Audio, Knurled Shaft, 16mm
Miniature Alpha pot for guitars. Audio taper.
$1.50
Op-Amp - LF353, Dual, Wide-Bandwidth, JFET Input, 8-Pin DIP
Dual wide-bandwidth LF353 opamps in an 8-pin DIP package. The LF353 offers a high input impedance and 3MHz bandwidth.
This LF353 device is a low-cost, high-speed, JFET input operational amplifier with very low input offset voltage. It requires low supply current yet maintains a large gain-bandwidth product and a fast slew rate. In addition, the matched high-voltage JFET input provides very low input bias and offset currents.
$0.34
Diode - Fast Recovery, 1A, 600V, 1N4937
A semiconductor device that, above a certain reverse voltage(the zener value) has a sudden rise in current. If forward biased, the diode is an ordinary rectifier. When reverse biased, it exhibits a sharp break in its current-voltage graph. Voltage across the diode remains essentially constant for any further increase of reverse current.
$0.20
Nut - M3-0.5 Hex Nut, Stainless Steel
Package of 5
A threaded fastener made from austenitic stainless steels. It contains chromium creating an invisible surface film that resists oxidation making the metal corrosion resistant. If the surface layer is damaged, it rebuilds itself in the presence of oxygen.
$0.50