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.
CMOS - CD4016, Quad Bilateral Switch, 14-Pin DIP
CD4016B Series types are quad bilateral switches intended for the transmission or multiplexing of analog or digital signals. Each of the four independent bilateral switches has a single control signal input which simultaneously biases both the p and n device in a given switch on or off. Features:
- 20-V digital or ± 10-V peak-to-peak switching
- 280- typical on-state resistance for 15-V operation
- Switch on-state resistance matched to within 10 typ. over 15-V signal-input range
- High on/off output-voltage ratio: 65 dB typ. @ fis = 10 kHz, RL = 10 k
- High degree of linearity: <0.5% distortion typ. @ fis = 1 kHz, Vis = 5 Vp-p, VDD–VSS
- Extremely low off-state switch leakage resulting in very low offset current and high effective off-state resistance: 100pA typ.
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.
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, Linear, Solid Shaft, Long PC, 16mm
Linear 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.
Transistor - OC141, Germanium, SO-2 glass case, NPN
OC141 NPN germanium transistors. The OC141 is a popular NPN for fuzz pedals and boost effects. This transistor is in a glass SO-2 package with long leads commonly found on germanium transistors. The NPN polarity allows for use with standard pedal power supplies. The dot indicates the collector lead.
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.
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.
Transistor - 2N5135, Silicon, TO-105 case, NPN
The 2N5135 is a silicon NPN transistor in a TO-105 case. This transistor is a close match to the rare 2N5133 but with higher voltage ratings and is in a larger package. The hFE range is less wide than the 2N5133 with more values in the range found in the batches used on vintage Big Muff pedals. The lower hFE range also makes these a great option for silicon fuzz pedals.
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.
PCB - Panel Mount Adapter, 9mm Right Angle Potentiometer
Package of 5Small PCB adapter boards to convert PCB mount 9mm right angle 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.
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
CMOS - CD4070, Quad XOR (Exclusive-OR) Gates, 14-Pin DIP
The CD4070B contains four independent Exclusive-OR gates. The CD4070B provides the system designer with a means for direct implementation of the Exclusive-OR functions, respectively. Features:
- High-Voltage Types (20V Rating)
- CD4070B - Quad Exclusive-OR 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.
Dust Cap - For DC Power Jack, Standard Size
Dust cover for standard size DC power jacks. This cover is simple to install and can help protect the power jack on effects pedals and other electronics using this style of DC jack. Jack sold separately.
Op-Amp - NJM5532, Dual, Low-Noise, 8-Pin DIP
The NJM5532 is a high performance dual low noise operational amplifier. Compared to the standard dual operational amplifiers, such as the NJM1458, it shows better noise performance, improved output drive capability, and considerably higher small-signal and power bandwidths. it is compensated internally for voltage follower circuit. This makes the device especially suitable for application in high quality and professional audio equipment, instrumentation, control circuits, and telephone channel amplifiers Features:
- Operating Voltage = ±3V~±22V
- Small Signal Bandwidth = 10MHz typ.
- Output Drive Capability = 600Ω,10Vrms typ.
- Input Noise Voltage = 5nV/√Hz typ.
- Power Bandwidth = 140kHz typ.
- Slew Rate = 8V/µs typ.
- Bipolar Technology
Transistor - BC183, General Purpose, TO-92 case, NPN
The BC183 is a general purpose NPN transistor in a TO-92 case. The BC183 is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz.