Synth & Eurorack Parts / DIY

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

Genuine Dunlop replacement small knurled knob for MXR pedals. Push -on style knob designed for use with coarse knurled shafts.

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

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)

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.

Carling, SPDT mini toggle, 2 positions, ¼" mounting hole diameter, 0.354" bushing length.

2SC828 NPN silicon transistors made by Panasonic. The 2SC828 is a popular NPN choice for fuzz pedals and can be found in vintage effects such as Super-Fuzz and Uni-Vibe pedals.

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.

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.

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.

High-quality USA made knobs from Rogan Corp. These small knobs feature a metal insert and a spun aluminum inlay with a black indicator line. The RB-67 Series from Rogan is popularly used on Buchla 200 Series modular synthesizers and can be found on many contemporary eurorack synthesizers.

• Height: 0.48 in.
• Diameter: 0.51 in.
• Fits ¼" shaft with set screws

A variety of sizes and colors are available from the RB-67 Series. See the links below for the full selection of knobs from this series. P-K770-X Small P-K770S-X Small Skirted P-K771S-X Medium Skirted P-K772S-B Large Skirted

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.

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

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.

The Switchcraft Type 111X enclosed ¼” jack is a high quality mono jack. This jack has two solder lugs. One for the tip 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 111X
• 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

See W-SC-112BX for stereo

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

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.

Linear taper, vertical mount, dual gang Alpha pots with a 6.35mm shaft diameter. Dual gang pots are useful for stereo controls and other circuits requiring two separate pots moving in tandem. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-A100K-DUAL for an audio taper version.

¾" dia. Knurled aluminum knob, 'positive grip', notched tip indicator, fits ¼" shaft. With set screw. Multiple color options available.

Audio taper, vertical mount, dual gang Alpha pots with a 6.35mm shaft diameter. Dual gang pots are useful for stereo controls and other circuits requiring two separate pots moving in tandem. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included. See R-VAV-BX-DUAL for linear taper versions.

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.

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.

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.

This nickel-plated brass adapter sleeve converts a 0.125 in. (3.17mm) shaft potentiometer to ¼" shaft (6.35mm), allowing for ¼" knobs to be used on a wider range of potentiometers. The cutout on the sleeve allows the set screw of the knob to secure directly to the shaft of the pot. Depending on the knob used, a longer set screw can be required.