Pedal Parts / DIY

The BC547 is a silicon general purpose NPN transistor in a TO-92 package. The BC547’s typical applications include signal processing, amplification, and switching. The BC547 is available in two different gain ranges: BC547B and BC547C. Type hFE (IC=2mA, VCE=5V) BC547B 200-450 BC547C 420-800

1N4742A 12V zener diode in a DO-41 package. A semiconductor device that, above a certain reverse voltage(the zener value) has a sudden rise in current. If forward biased, the diode is an ordinary rectifier. When reverse biased, it exhibits a sharp break in its current-voltage graph. Voltage across the diode remains essentially constant for any further increase of reverse current.

2N1308 NPN germanium transistors. The 2N1308 is a popular NPN for fuzz pedals and other effects. This transistor is in a TO-39 package.

NPN Darlington transistor (TO-92 package) - designed for applications requiring extremely high current gain at collector currents to 1.0A.

• Max collector to emitter voltage = 30 V
• Max collector to base voltage = 30 V
• Max emitter to base voltage = 10 V
• Max collector current = 1.2 A (continuous)

Small black plastic chicken head knob with an off-white indicator line for a vintage look. Fits 6.35mm (1/4") potentiometer shafts.

This precision-wound toroidal will give the cleanest sound possible. Use the cup core model, part number P-ECB-FI-01 for a more vintage sound. The Fasel inductor is back! These near-mythical inductors are the key to the singing tonal sweep every wah player lusts for but can't capture with a new pedal. The ultimate upgrade to your current wah, these magic bullets are available exclusively from Dunlop, the new worldwide agent for Fasel of Italy. Your wah will finally give up the lush harmonic sparkle you've always heard in your head but could never coax from you rig.

Audio taper, vertical mount, Song Huei pots with a 6mm shaft. These 9mm pots are popular in DIY guitar pedals, modular synthesizers, and other projects where space is limited. The knurled shaft features a painted indicator line so no knob is required. These tall versions have a 17mm shaft length and a total height of 25mm. For linear taper versions, see R-VSHL-BX. For center notched, linear taper versions, see R-VSHL-BX-CN.

NE5532 dual op amp in an 8-pin DIP package. The NE5532 device is a high-performance operational amplifier combining excellent DC and AC characteristics. They feature very low noise, high output-drive capability, high unity-gain and maximum-output-swing bandwidths, low distortion, high slew rate, input-protection diodes, and output short-circuit protection. These operational amplifiers are compensated internally for unity-gain operation. These devices have specified maximum limits for equivalent input noise voltage. Features

• Equivalent Input Noise Voltage: 5 nV/√Hz Typ at 1 kHz
• Unity-Gain Bandwidth: 10 MHz Typ
• Common-Mode Rejection Ratio: 100 dB Typ
• High DC Voltage Gain: 100 V/mV Typ
• Peak-to-Peak Output Voltage Swing 26 V Typ With VCC± = ±15 V and RL = 600 Ω
• High Slew Rate: 9 V/μs Typ

High-quality solder lug linear taper 16mm pots from Gorva Design. Gorva Design left no boxes unchecked when engineering their potentiometer lineup. Every element was carefully designed to offer builders an exceptional potentiometer with high durability and tight tolerances. Gorva potentiometers are made with stompboxes in mind but offer the same advantages to amplifiers, synthesizers, studio equipment and other electronics.

• Solder lug / panel mount
• Linear taper
• +/- 10% tolerance
• ¼” (6.35mm) solid shaft
• Machine-pressed dust seal
• High quality wiper material
• Low residual resistance

For audio taper solder lug pots see R-VGORVA-AX-SL. For audio taper right-angle PCB mount pots see R-VGORVA-AX-PC. For linear taper right-angle PCB mount pots see R-VGORVA-BX-PC.

High brightness 3mm LED. Great for use in pedal builds and other applications where a bold, bright, indicator is needed. Multiple colors available.

• 3mm size
• Water clear
• High brightness
• Multiple colors available
• Package of 5

Linear taper, vertical mount, Alpha pots with a 6mm T18 knurled shaft. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.

2N4061 PNP transistors. This is a silicon PNP transistor in a TO-92 package. The 2N4061 has been used in a variety of effects pedals and is most notably used in the Zonk Machine II.

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.

BC238B NPN transistor in a TO-92 package. The BC238 is used in a variety of vintage pedals such as the Schaller Fuzz, a version of the Brian May treble boost,and later Jen / Tonebender fuzz pedals. The BC238B is a variant of the BC108B and works well in other classic fuzz pedals such as Fuzz Face and Big Muff builds.

5mm (T-1 ¾) diffused LED’s. Great for use in pedal builds and other applications where a tinted and diffused indicator is needed. Multiple colors available.

• 5mm size
• Tinted and diffused
• Multiple colors available
• Package of 5

Stripboard featuring standard 0.1” (2.54mm) spacing. The board has a 30x15 grid (15 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
• 30 x 15 holes (15 strips)
• 3.04” x 1.55”

Solder terminals, non-switched. Metal ferrule, vintage style found in many amplifiers and pedals. For the switched version, see S-H901-X. Features:

• Low-noise Ni-Ag® Alloy Self-Cleaning Contacts for superior performance and reliability
• Tough, molded grade 1 black Nylon body.
• Made in the U.K.
• Supplied with a metal hexagonal mounting nut
• Designed to receive both mono and stereo ¼" jack plugs
• Withstand Voltage: 2000VDC Min.
• Maximum Current: 5A
• Temperature Rating: -10°C ~ +70°C
• Life (Minimum): 10,000+ Operations
• Nominal Contact Resistance: < 50 mΩ

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”

2N1309 PNP germanium transistors. The 2N1309 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.

2N5087 PNP Bipolar Junction Transistor in TO-92 package. For the NPN 2N5087 see P-Q2N5088

Original Dunlop replacement gear for wah potentiometers (C-ring included). The gear has 14 teeth and a flatted inner diameter to fit securely onto a potentiometer with flatted shaft. The included C-ring is placed over the top end of the gear to keep it from sliding off the end of the potentiometer shaft.

A great digital reverb sound that easily replaces a spring reverberation unit. Stereo outputs may be summed for mono operation. Simple interface: input, output, +5V, and ground

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.

RC4558 dual op amp in an 8-pin DIP package. The RC4558 device is a dual general-purpose operational amplifier, with each half electrically similar to the µA741, except that offset null capability is not provided. The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation ensures stability without external components. Features

• Continuous Short-Circuit Protection
• Wide Common-Mode and Differential Voltage Ranges
• No Frequency Compensation Required
• Low Power Consumption
• No Latch-Up
• Unity-Gain Bandwidth: 3 MHz Typ
• Gain and Phase Match Between Amplifiers
• Low Noise: 8 nV/√Hz Typ at 1 kHz

Applications

• DVD Recorders and Players
• Pro Audio Mixers