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.
Transistor - SFT319, Germanium, 18B4 case, PNP
SFT319 PNP germanium transistors. The SFT319 is a popular PNP for fuzz pedals and other effects. This transistor is in a 18B4 package with long leads commonly found on germanium transistors. This style of package can be found in Italian built Vox Tonebenders.
Switch - GØRVA, Submini Toggle, SPDT, 2 Position, PC Pins, Medium Bat
Premium two position SPDT 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
- 2-Position On/On
- 4.95mm panel hole diameter
- Single pole/Double throw (SPDT)
- PC Pins
- 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
Op-Amp - TL061, Single, Low Power, JFET-input, 8-Pin DIP
TL061 single op amp in an 8-pin DIP package. The JFET-input operational amplifiers of the TL06x series are designed as low-power versions of the TL08x series amplifiers. They feature high input impedance, wide bandwidth, high slew rate, and low input offset and input bias currents. The TL06x series features the same terminal assignments as the TL07x and TL08x series. Features
- Very Low Power Consumption
- Typical Supply Current: 200 µA (Per Amplifier)
- Wide Common-Mode and Differential Voltage Ranges
- Low Input Bias and Offset Currents
- Common-Mode Input Voltage Range Includes VCC+
- Output Short-Circuit Protection
- High Input Impedance: JFET-Input Stage
- Internal Frequency Compensation
- Latch-Up-Free Operation
- High Slew Rate: 3.5 V/µs Typical
Reverb Module - Accutronics, Digi-Log, vertical mount, mini
A great digital reverb sound that easily replaces a spring reverberation unit. Stereo outputs may be summed for mono operation. Simple interface requires only input, output, +5V, and ground.
CMOS - CD4021, 8-Stage Static Shift Register, 16-Pin DIP
CD4021B series types are 8-stage parallel- or serial-input/serial output registers having common CLOCK and PARALLEL/SERIAL CONTROL inputs, a single SERIAL data input, and individual parallel "JAM" inputs to each register stage. Each register stage is D-type, master-slave flip-flop. In addition to an output from stage 8, "Q" outputs are also available from stages 6 and 7. In the CD4021B serial entry is synchronous with the clock by parallel entry is asynchronous. Entry is controlled by the PARALLEL/SERIAL CONTROL input. When the PARALLEL/SERIAL CONTROL input is low, data is serially shifted into the 8-stage register synchronously with the positive transition of the clock line. When the PARALLEL/SERIAL CONTROL input is high, data is jammed into the 8-stage register via the parallel input lines and synchronous with the positive transition of the clock line.
Power Jack - Lumberg, DC Panel Mount, Snap-in, 5.5mm External, 2.1mm Internal
Snap-in Lumberg panel mount barrel jack with solder lugs. This high quality jack is a similar size to the Lumberg low profile jack but easily snaps into place with no need to thread a nut inside the chassis. For use with barrel plugs with a 5.5mm external diameter and 2.1mm internal diameter.
Knob - Plastic, Set Screw, MXR Style, 1.0" DiameterLarge plastic knobs with set screw and brass insert. Similar to the knobs used on many classic Dunlop / MXR pedals. These knobs have a fluted grip with an indicator line as well as a dot indicator on the skirt. Fits ¼” (6.35mm) pot shafts.
Starting at $1.15
Knob - Rogan, PT Series, 1S, Small, Skirted, D-ShaftHigh-quality USA made knobs from Rogan Corp. These small, skirted 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.
A variety of different sizes are available from the PT Series.
- Height: 0.71 in.
- Diameter: 0.57 in.
- Fits 6mm D Shafts
- No indicator
A variety of different sizes are available from the PT Series.
ProtoBoard - Fits 1590BB, 1 sided, 2-hole strips
Prototyping circuit board (PCB) designed to fit the Hammond 1590BB die-cast aluminum enclosure. It has a convenient 2-hole pattern, which provides an easy way to connect parts while maximizing usable board area. It can be used as a stand-alone prototyping board, or installed in a Hammond 1590BB enclosure. For fastening your project to a surface see our adhesive standoffs (S-H190). Features:
- Single-sided high-quality FR4 glass-epoxy circuit board.
- Convenient 2-hole pattern provides an easy way to connect parts.
- 1oz/ft2 copper with an anti-tarnish coating for easy soldering.
- 0.042" holes are drilled on 0.1" (2.54mm) centers. 4 mounting holes.
- PCB Size 3.20 x 4.25 in (81.3 x 108.0 mm)
Potentiometer - Alpha, Reverse Audio, Solid Shaft, Long PC, 16mm, 5kΩ
5kΩ reverse audio taper Alpha 16mm pots with a solid shaft and long 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: 20.7 mm + 4 mm (0.815” + 0.158”)
- Lead Distance from shaft center: 14.3 mm (0.563”)
- Lead Thickness: 0.5 mm (0.020”)
- Shaft Diameter: 6.35 mm (0.25”)
Nut - Dress Nut, For Mini Toggle SwitchesDress nuts for use with mini toggle switches. These plated dress nuts feature a chamfered edge for a professional look and work on any 1/4-40 UNS threaded bushing. Two sides are flatted for use with a tool when fastening.
Diode - 1N60, Germanium, Striped Clear Glass, DO-7
1N60 point-contact germanium diodes in a DO-7 package with striped clear glass. 1N60 diodes were used in many vintage electronics and also make for great clipping diodes in stompbox effects pedals.
Transistor Socket - Mill Max, 3 Pin, Machine Pin, Through Hole
High quality TO package transistor sockets by Mill-Max. These machine pin sockets make swapping transistors in pedals and other projects a simple process. These use a standard TO footprint so they are ready for use on PCBs with matching footprints.
Integrated Circuit - AS571D, Compandor, Alfa, SOIC-16
The AS571D is Alfa’s version of the NE571 or SA571 in an SOIC package. AS571 is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. Each channel has a full-wave rectifier to detect the average value of the signal, a linearized temperature-compensated variable gain cell, and an operational amplifier. AS571 is well suited for use in VCA blocks, noise reduction systems, compandors/expanders ,etc. Features
- Complete compressor and expandor
- Temperature compensated
- Channel separation >86 dB
- Greater than 110 dB dynamic range
- Levels adjustable with external components
- Distortion may be trimmed out
- High level limiter
- Low level expandor − noise gate
- Dynamic filters
- Dynamic noise reduction systems
Capacitor - 100V, Ceramic Disc, ± 10%
100 V ceramic disc capacitors. ± 10% tolerance.
Starting at $0.25
Transistor - BC548, General Purpose, TO-92 case, NPN
The BC548 is a silicon general purpose NPN transistor in a TO-92 package. The BC548’s typical applications include signal processing, amplification, and switching. The BC548 is available in two different gain ranges: BC548B and BC548C. Type hFE (IC=2mA, VCE=5V) BC548B 200-450 BC548C 420-800
Transistor - 2N3904, TO-92 case, NPN
General purpose low-power NPN bipolar junction transistor, used frequently in hobbyist electronic projects.
Knob - Davies, 1914, Daka-ware, Medium, Scalloped Edge
High-quality USA made knobs from Davies Molding. The 1914 knob is the larger version of the classic 1900H found on countless synthesizers and pedals. This knob is made of solid phenolic and features an indicator line on the top. The knob pairs perfectly with the smaller diameter 1900 knobs such as the P-K801-BRASS-X as well as the skirted P-K234X knobs.
- Height: 0.50 in.
- Diameter: 0.75 in.
- Fits ¼" shaft with set screw
Washer - Flat, M3, Nylon, for Front PanelsHigh quality nylon M3 flat washers. These durable washers fit perfectly on M3 threaded screws. The small outside diameter provides a clean look beneath the head of the screw. These are great mounting washers for preventing rack rash on front panels like Eurorack synths or any other use where the surface beneath the screw requires protection.
package of 10
Transistor - 2N3392, Silicon, TO-92 case, NPN
The 2N3392 is a general purpose NPN transistor in a TO-92 case. The 2N3392 is used in some original silicon Fuzz Face pedals as well as the Brassmaster fuzz.
IC Socket - Dual in-line package, 2.54mm Pitch, 7.62mm Spacing
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
PCB - Panel Mount Adapter, 9mm Vertical Potentiometer
Small PCB adapter boards to convert PCB mount 9mm vertical pots to wired panel mount pots. These adapters are great for tight builds allowing for more densely populated panels than 16mm options. They’re also a great way to incorporate sealed potentiometers into builds where larger sized options would be cost prohibitive.
package of 5
Switch - Carling, Mini Toggle, DPDT, 3 Position, Lugs, Short Bat
Carling mini-toggle switch, DPDT, 3 position, ¼" mounting hole diameter, 0.354" bushing length.
- 0.354" bushing length
- ¼" mounting hole diameter
- Double pole/Double throw (DPDT)
- Solder lugs
Starting at $5.25
CMOS - CD4077, Quad XNOR (Exclusive-NOR) Gates, 14-Pin DIP
The CD4077B contains four independent Exclusive-NOR gates. The CD4077B provides the system designer with a means for direct implementation of the Exclusive-NOR functions, respectively. Features:
- High-Voltage Types (20V Rating)
- CD4077B - Quad Exclusive-NOR Gate
- Medium Speed Operation
- tPHL, tPLH = 65ns (Typ) at VDD = 10V, CL = 50pF
- 100% Tested for Quiescent Current at 20V
- Standardized Symmetrical Output Characteristics
- 5V, 10V and 15V Parametric Ratings
- Maximum Input Current of 1µA at 18V Over Full Package Temperature Range
- 100nA at 18V and 25°C
- Noise Margin (Over Full Package Temperature Range)
- 1V at VDD = 5V, 2V at VDD = 10V, 2.5V at VDD = 15V
- Meets All Requirements of JEDEC Standard No.