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.
P-QBC209C Transistor - BC209C, Silicon, TO-106 case, NPN
The BC209C is a silicon NPN transistor in a TO-106 case. The BC209C is primarily intended for general purpose audio applications. BC209C transistors were used in original silicon Fuzz Face® pedals as well as a variety of D*A*M pedals.
$3.49
P-K226 Knob - Davies, 2150, Daka-ware, Vintage Pointer
High-quality USA made knobs from Davies Molding. This vintage-style 2150 pointer knob is made of solid phenolic and features an infilled indicator line. The detailed design has a mixture of ridges, curves and lines giving it a distinctively vintage appearance. The 2150 can be found on vintage equipment such as the Echoplex tape delay and test equipment from RCA and National Radio Company.
  • Height: 0.56 in.
  • Length: 1.25 in.
  • Fits ¼" shaft with set screw
$3.45
P-QLM13700 OTA - LM13700, Dual, Linearizing Diodes and Buffers, 16-Pin DIP
The LM13700 series consists of two current controlled transconductance amplifiers, each with differential inputs and a push-pull output. The two amplifiers share common supplies but otherwise operate independently. Linearizing diodes are provided at the inputs to reduce distortion and allow higher input levels. The result is a 10-dB signal-to-noise improvement referenced to 0.5 percent THD. High impedance buffers are provided which are especially designed to complement the dynamic range of the amplifiers. The output buffers of the LM13700 differ from those of the LM13600 in that their input bias currents (and thus their output DC levels) are independent of IABC.
$3.29
P-H548 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
$3.25
W-SC-112AX ¼" Jack - Switchcraft, Enclosed, Mono, Shunt Tip
The Switchcraft Type 112A enclosed ¼” jack is a high quality jack featuring a switched tip. This jack has three solder lugs. One for the tip, one for the sleeve, and one for the switch which connects to the tip when no plug is inserted. These jacks have been widely used across the industry and can also be found in many popular 5U synthesizers. Includes nut and washer
  • Type 112AX
  • 0.276" bushing length (standard)
  • Mates with standard ¼" plugs and is available with 0.25" inside diameter bushing.
  • Mono 2-Conductor
  • Includes nut and washer
  • Tip is shunt
$3.25
On Backorder
P-Q2N527 Transistor - 2N527, Germanium, TO-5 case, PNP
2N527 PNP germanium transistors. The 2N527 is a popular PNP for fuzz pedals and other effects. It can be found in modern classics such as the Sunface and Benson Fuzz. This transistor is in a TO-5 package with long leads commonly found on germanium transistors.
$3.25
P-QLT1054 Regulator - LT1054, Voltage Converter w/ Regulator, 8-Pin DIP
LT1054 switched-capacitor voltage converter with regulator in an 8 pin DIP package. The LT1054 device is a bipolar, switched-capacitor voltage converter with regulator. It provides higher output current and significantly lower voltage losses than previously available converters. An adaptive-switch drive scheme optimizes efficiency over a wide range of output currents. Total voltage drop at 100-mA output current typically is 1.1 V. This applies to the full supply-voltage range of 3.5 V to 15 V. Quiescent current typically is 2.5 mA. The LT1054 also provides regulation, a feature previously not available in switched-capacitor voltage converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated against changes in both input voltage and output current. The LT1054 can also shut down by grounding the feedback terminal.
$3.19
W-SC-112BX ¼" Jack - Switchcraft, Enclosed, Stereo
The Switchcraft Type 112BX enclosed ¼” jack is a high quality jack. This jack has three solder lugs. One for the tip, one for the ring, and one for the sleeve. These jacks have been widely used across the industry and can also be found in many popular 5U synthesizers. Includes nut and washer.
  • Type 112BX
  • 0.276" bushing length (standard)
  • Mates with standard ¼" plugs and is available with 0.25" inside diameter bushing.
  • Stereo 3-Conductor
  • Includes nut and washer

See W-SC-111X for mono version
$3.15
P-PC-PAD1 PadBoard - Double Sided, Plated Holes, 3.15” x 1.97”
Prototyping circuit board that has a general purpose pad-per-hole pattern making it great for general purpose analog and digital use. It is a double-sided board with plated holes, which allows components to be easily soldered to either side of the board. A square pad is provided every 5th hole, which makes it easy to align components on the top and bottom of the board. An anti-tarnish coating protects the copper for a long shelf-life and provides easy soldering.
For fastening your project to a surface see our adhesive standoffs (S-H190)
Features:
  • Pad-per-hole prototyping board with plated-thru holes. A square pad every 5th hole makes it easy to align components on top and bottom.
  • Double-sided high-quality FR4 glass-epoxy circuit board with plated holes. Components can be soldered to either side.
  • 1oz/ft2 copper with an anti-tarnish coating for easy soldering.
  • 31 x 19 holes, 0.037" holes are drilled on 0.1" (2.54mm) centers. Four 0.125” mounting holes.
  • Size 1 = 1.97 x 3.15in (50 x 80mm), 1/16" thick (1.6mm)
$3.15
P-PC-ST1 StripBoard - Single Sided, 3.15” x 1.97”, Mounting Holes
Prototyping circuit board with a standard long strip pattern where tracks run the length of the board. The long tracks are convenient for power and ground rails, and for signal buses. Strips can be cut as needed to make smaller tracks and circuit pads and the board has 0.1" hole spacing for DIP integrated circuits/ headers as well as other parts. Higher quality than traditional stripboard, the holes are drilled, not punched.
$3.09
P-K232X Knob - Davies, 1600 & 1610, Daka-ware, Skirted
High-quality USA made knobs from Davies Molding. The small skirted 1610 knob is made of solid phenolic and features an indicator line on the 0.91” diameter skirt. This classic knob has been used on a variety of equipment and most notably on the Buchla 100 Series as well as some 200 Series modules.
  • Height: 0.59 in.
  • Diameter: 0.91 in.
  • Fits ¼" shaft with set screw

The large skirted 1600 knob is made of phenolic and features an indicator line on the 1.5” diameter skirt. This classic knob has been used on a variety of equipment and most notably on the Buchla 100 Series as well as some 200 Series modules.
  • Height: 0.69 in.
  • Diameter: 1.5 in.
  • Fits ¼" shaft with set screw
$3.09
P-PC-STD15-1-X StripBoard - Single Sided, 3.04” x 1.55”, Vintage Spacing
Colors Available:
Stripboard featuring a 0.15” vintage spacing. This spacing is great for vintage-style builds and more easily accommodates axial capacitors and other larger sized vintage parts like resistors and transistors. The board has a 20x10 grid (10 strips) and easily fits into 1590BB style enclosures and larger vintage-style fuzz enclosures. Each strip is HASL coated making soldering easier than most protoboards and also ensures a long shelf life. Features:
  • High-quality 1.6mm FR4 glass-epoxy circuit board
  • 1oz/ft2 copper weight
  • HASL coated strips
  • 20 x 10 holes (10 strips)
  • 3.04” x 1.55”
$2.99
P-K310X Knob - Aluminum, Notched Tip Indicator, Set Screw, .75" Diameter
Colors Available:
¾" dia. Knurled aluminum knob, 'positive grip', notched tip indicator, fits ¼" shaft. With set screw. Multiple color options available.
$2.99
P-PC-PADD15-1-X PadBoard - Single Sided, 3.04” x 1.55”, Vintage Spacing
Colors Available:
Padboard featuring a 0.15” vintage spacing. This spacing is great for vintage-style builds and more easily accommodates axial capacitors and other larger sized vintage parts like resistors and transistors. The board has a 20x10 grid of pads and easily fits into 1590BB style enclosures and larger vintage-style fuzz enclosures. Each square pad is HASL coated making soldering easier than most protoboards and also ensures a long shelf life. Features:
  • High-quality 1.6mm FR4 glass-epoxy circuit board
  • 1oz/ft2 copper weight
  • HASL coated square shaped pads
  • 20 x 10 holes
  • 3.04” x 1.55”
$2.99
P-Q2N1307 Transistor - 2N1307, Germanium, TO-5 case, PNP
2N1307 PNP germanium transistors. The 2N1307 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.
$2.95
P-K227 Knob - Davies, 1919, Daka-ware, Large, Skirted Pointer
High-quality USA made knobs from Davies Molding. The large skirted 1919 pointer knob is made of solid phenolic and features an infilled indicator line. The pointer has an overall length of 1.25” and the skirt’s diameter is 1.13”. This knob shares design elements of the Davies 19xx knobs allowing for a uniform look while using a variety of knob shapes and styles.
  • Height: 0.625 in
  • Length: 1.25 in.
  • Fits ¼" shaft with set screw
$2.95
P-Q2N169 Transistor - 2N169, Germanium, Oval case, NPN
2N169 NPN germanium transistors in an oval package. The oval package is sometimes referred to as a top hat package. The 2N169 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies.
$2.95
P-QAC132K Transistor - AC132K, Germanium, Heatsink TO-1 case, PNP
AC132K PNP germanium transistors. The AC132K is a popular PNP for fuzz pedals and other effects. This transistor is in a thick rectangular heat-sink package with long leads commonly found on germanium transistors.
$2.95
W-EL-DRESS-1 Nut - Dress Nut, Slotted, ⅜”-32 UNEF, for Jacks & Pots
Slotted dress nut for ⅜”-32 threaded bushing such as standard Switchcraft ¼” jacks and CTS potentiometers. These plated brass nuts add a sleek look to any amplifier, pedal or guitar. This style of nut has a similar look to slotted round nuts found on plexi Marshall amps.
$2.95
P-Q2N1305 Transistor - 2N1305, Germanium, TO-5 case, PNP
2N1305 PNP germanium transistors. The 2N1305 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.
$2.95
P-PC-STD15-1-BRN StripBoard - Single Sided, 3.04” x 1.55”, Vintage Spacing, Phenolic Board
Stripboard made with a phenolic substrate. Phenolic boards are found in many vintage electronics before the use of fiberglass became common. This stripboard features a 0.15” vintage spacing. This spacing is great for vintage-style builds and more easily accommodates axial capacitors and other larger sized vintage parts like resistors and transistors. The board has a 20x10 grid (10 strips) and easily fits into 1590BB style enclosures and larger vintage-style fuzz enclosures. Each strip is gold coated making soldering easier than most protoboards and also ensures a long shelf life. Features:
  • High-quality 1.6mm phenolic circuit board
  • Gold coated strips
  • 20 x 10 holes (10 strips)
  • 3.04” x 1.55”
$2.95
P-QOPA134 Op-Amp - OPA134, Single, High Performance Audio, 8-Pin DIP
OPA134 single op amp in an 8-pin DIP package. The OPA134 series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. A true FET input stage is incorporated to provide superior sound quality and speed for exceptional audio performance. This, in combination with high output drive capability and excellent DC performance, allows for use in a wide variety of demanding applications. In addition, the OPA134 has a wide output swing, to within 1 V of the rails, allowing increased headroom and making it ideal for use in any audio circuit. The OPA134 SoundPlus™ audio operational amplifiers are easy to use and free from phase-inversion and the overload problems often found in common FET-input operational amplifiers. They can be operated from ±2.5-V to ±18-V power supplies.
$2.95
P-Q2N797 Transistor - 2N797, Germanium, TO-18 case, NPN
2N797 NPN germanium transistors. The 2N797 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies. The 2N797 is a fairly unique germanium transistor since it is in a TO-18 package.
$2.95
P-Q2N1303 Transistor - 2N1303, Germanium, TO-5 case, PNP
2N1303 PNP germanium transistors. The 2N1303 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.
$2.95
Don't see what you're looking for? Send us your product suggestions!