Synth & Eurorack Parts / DIY

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

PCB mounted 3.5mm mono jacks commonly found in DIY Eurorack projects. These are the newest version from Qingpu Electronics featuring a square bushing plate for added durability. Hardware sold separately. See accessory items below.

3.5mm TS jacks with a switched tip found in many DIY Eurorack projects. The WQP-WQP518MA-BM is the new improved version of the WQP-PJ301BM featuring Qingpu’s rugged square based bushing. The sleeve connection is through the outer bracket that snaps into place on the pcb allowing for easy construction and panel fitting. Hardware sold separately. See accessory items below.

PCB mounted 3.5mm stereo jacks commonly found in DIY Eurorack projects. These are the newest version from Qingpu Electronics featuring a square bushing plate for added durability. Hardware sold separately. See accessory items below.

3.5mm TRS jacks with a switched tip found in many DIY Eurorack projects. These Qingpu Electronics jacks can be panel mounted with wires or more commonly PCB mounted. The PJ3410 jacks can be used for both mono and stereo signals. Hardware sold separately. See accessory items below.

High quality 3.5mm (1/8") plug. Features nickel plated brass contacts, with a nickel plated zinc shell. This plug uses a crimp strain relief for use with 4 mm O.D cables.

LM386 Low Voltage Audio Power Amplifier The LM386 is a mono low voltage amplifier that can be used in a variety of applications. It can drive loads from 4 Ω to 32 Ω. The gain is internally set to 20 but it can be modified from 20 to 200 by placing a resistor and capacitor between pins 1 and 8. As this is an Op Amp it can be used in different configurations to fit in several applications. The internal gain setting resistor allows the LM386 to be used in a very low part count system. In addition a series resistor can be placed between pins 1 and 5 to modify the gain and frequency response for specific applications. These are found in many small audio amplifiers and even tiny pedal sized guitar amplifiers! There are tons of possibilities for this little Op Amp.

High quality banana jacks with tinned brass contacts and strong nylon housings. These jacks come in a wide variety of colors and work well with any 4mm banana plug. Cinch Johnson banana jacks are used in test equipment, audio equipment, as well as modular synthesizers such as DIY Buchla, Serge, and others. Features:

• Formed brass contacts
• Bright tin finish
• Durable nylon 6/6 body
• Nickel plated nut
• 0.010Ω maximum contact resistance
• Keyed mounting with two flatted sides

High quality right angled 10-pin headers. Right angled headers are perfect for compact eurorack builds. The durable glass filled polyester shroud makes soldering these shrouded headers a simple task.

The SB400 Solderable PCB BreadBoard enables you to transfer your circuit and wires from a plug-in breadboard without recutting wires or changing your layout. The SB400 has the same pattern and spacing as a standard 400 connection point BB400 solderless plug-in breadboard. It has a standard 5-hole strip for each IC pin, just like solderless breadboards plus 4 power rails. However, it has the advantage that soldered joints provide a more reliable long-term connection than solderless contacts. The SB400 has four power rails like solderless breadboards, plus two bonus rails for power or signals. There are bonus two-hole pads along the centerline allowing DIL (dual in-line) headers to be used. BPS prototyping boards use high-quality FR4 glass epoxy PCBs for long life, with an anti-tarnish protective coating for easy soldering.

Solderable PC BreadBoard enables you to transfer your circuit and wires from a plug-in breadboard without recutting wires or changing your layout. This breadboard has the same pattern as a standard 400 connection point solderless plug-in breadboard which has a standard 5-hole strip for each IC pin, just like solderless breadboards. However, it has the advantage that soldered joints provide a more reliable long-term connection than solderless contacts. The board has four power rails like solderless breadboards, plus two bonus rails for power or signals. There are bonus two-hole pads along the centerline allowing DIL (dual in-line) headers to be used as well as a top side silkscreen to position components. Four mounting holes allow your projects to be secured.

Solderless (plug-in) breadboard with 400 connection tie-points (i.e. 400 wire insertion holes) and 4 power rails. Solderless breadboards are great for building and testing new circuits because parts can be easily inserted and removed making them completely re-usable. This breadboard has a 300 tie-point IC-circuit area plus four 25 tie-point power rails. The housing is made of white ABS plastic, with a printed legend giving numbers and letters for columns and rows. The internal contacts are phosphor bronze with a plated nickel finish and a peelable adhesive tape backing is provided for attaching it to a surface. Be sure to check out the Zipwire™ jumper wire kits for use with this breadboard.

0.002uF ceramic disc capacitor rated for up to 1kV, ± 10% tolerance.

100 V ceramic disc capacitors. ± 10% tolerance.

Polyester film dielectric, aluminum foil electrode, copperply leads and epoxy resin coating in inductive type.

• Small size, light weight and low cost
• Dissipation factor is small because the leads are directly welded to electrodes
• Epoxy resin vacuum-dipped enhances the mechanical strength, humidity resistance
• 100 volt rating
• Operating temperature range: -40°C to +85°C.
• Package of 5

Ceramic disc capacitors rated for up to 2kV, ± 10% tolerance.

High quality, radial leaded, aluminum electrolytic capacitors rated at 25VDC.

Polyester Film Capacitor used in MOD® Pedal Kits. Rated at 0.1µF 50V. Tolerance: 10%. Operating temperature: -40 C to +85 C

Radial ceramic capacitor.

• Voltage rating: 500VDC
• Tolerance: ± 10%

Polyester Film Capacitor used in MOD® Pedal Kits. Rated at 0.047µF 50V. Tolerance: 10%. Operating temperature: -40 C to +85 C

Ceramic disc capacitor, 680 pF (.00068µF) rated for up to 50 V.
Non linear temperature coefficient of capacitance

High quality, radial leaded, aluminum electrolytic capacitors rated at 50VDC.

The 1N34A Germanium diode is an old standby in electronics. Widely used for detecting the rectifying efficiency or for switching on a radio, TV or stereo etc.

Schottky diode with low forward voltage drop and high switching speeds.