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.
Patch Cables - 3.5mm, Mono
Colors Available:
Low cost, high quality 3.5mm patch cables in a variety of lengths and colors. The cables are super flexible, have a great droop, and are shipped coiled so no permanent kinks are formed. With the large selection of lengths and colors, these cables are the perfect choice for any sized system.
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Potentiometer - Alpha, Linear, Knurled Shaft, Right Angle, 16mm
Linear taper 16mm potentiometers with a T18 knurled shaft. 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”)
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Wire - 22 AWG Stranded Core, PVC, 600V, 50 Foot Roll
Colors Available:
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.
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Transistor - MPSA18, Low Noise, 200mA 45V NPN
NPN low noise transistor (TO-92 package) - designed for high gain, low noise general purpose amplifier applications.
  • Max collector to emitter voltage = 45 V
  • Max collector to base voltage = 45 V
  • Max emitter to base voltage = 6.5 V
  • Max collector current = 0.2 A (continuous)
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Diode - 1N5818, Schottky, High Switching Speed
1N5818 schottky diode with low forward voltage drop and high switching speeds.
  • Very small conduction losses
  • Negligible switching losses
  • Extremely fast switching
  • Low forward voltage drop
  • Avalanche capability specified
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Nut - Hex, for mounting Qingpu PJ3410 3.5mm jacks
Hex nut for W-QP-PJ3410 3.5mm jacks. See W-QP-NUT-PJ-R for the round, slotted version of this nut.
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Transistor - 2N5088, Bipolar, General Purpose
2N5088 NPN Bipolar Junction Transistor in TO-92 package
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Nut - Hex, for mounting Qingpu 3.5mm jacks
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
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Transistor - 2N3904, TO-92 case, NPN
General purpose low-power NPN bipolar junction transistor, used frequently in hobbyist electronic projects.
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Nut - Round, for mounting Qingpu PJ3410 3.5mm jacks
Knurled, slotted nut for W-QP-PJ3410 3.5mm jacks.
See W-QP-NUT-PJ-H for the hex version of this nut.
See S-TND-2X for nut driver tool
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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
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Diode - 1N5817, Schottky, High Switching Speed
Schottky diode with low forward voltage drop and high switching speeds.
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Capacitor - 500V, Ceramic Disc, ± 10%
Radial ceramic capacitor.
  • Voltage rating: 500VDC
  • Tolerance: ± 10%
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Washer - Flat, for use on Qingpu Jacks
Flat washer for W-QP-419GR and W-QP-518MA 3.5mm jacks.
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Diode - Small Signal Fast Switching, 1N4448
A semiconductor device which passes current in the forward direction(from anode to cathode), and blocks current in the opposite direction. Features
  • Silicon epitaxial planar diodes
  • Low power loss, high efficiency
  • Low leakage
  • Low forward voltage
  • High speed switching
  • High current capability
  • High reliability

Used in a variety of Fender amps. Replacement for Fender part number 0006260049
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Switch Accessory - Mini Toggle Caps, Standard Bat, 11 Colors
Colors Available:
Rubber caps / switch tips for mini toggle switches in a variety of colors. These are made for standard sized toggle bats. Available in 11 different colors.
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Diode - 1N4748A, 22V, Zener, 1W, 5% Tolerance
1N4748A 22V zener diode in a DO-41 package. 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.
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Switch Accessory - Mini Toggle Caps, Short Bat, 11 Colors
Colors Available:
Rubber caps / switch tips for mini toggle switches in a variety of colors. These are made for short sized toggle bats. Available in 11 different colors. See P-HTCAP-X for standard-length caps.
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Diode - 1N4741A, 11V, Zener, 1W, 5% Tolerance
1N4741A 11V zener diode in a DO-41 package. 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.
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Transistor - BC550, TO-92 case, NPN
Low noise transistor for audio frequency amplifier applications.
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Transistor - MPSA14, Darlington, 500mA, 30V, NPN
MPSA14 NPN Darlington transistor (TO-92 package) - designed for high gain, low noise general purpose amplifier applications.
  • Max collector to emitter voltage = 30 V
  • Max collector to base voltage = 30 V
  • Max emitter to base voltage = 10 V
  • Max collector current = 0.5 A (continuous)
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Transistor - MPSA64, Darlington, -500mA, -30V, PNP
MPSA63 PNP Darlington transistor (TO-92 package) - designed for high gain, low noise general purpose amplifier applications.
  • Max collector to emitter voltage = -30V
  • Max collector to base voltage = -30 V
  • Max emitter to base voltage = -10 V
  • Max collector current = -0.5 A (continuous)
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Capacitor - 100V, Ceramic Disc, ± 10%
100 V ceramic disc capacitors. ± 10% tolerance.
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Diode - 1N914, Small Signal
The 1N914 is a small signal diode similar to the 1N4148 and is common in many older electronics. The 1N914 is general purpose and can be used in a multitude of different applications.
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