Pedal Parts / DIY

Transistor - BC183A, ITT, General Purpose, TO-92 case, NPN
The BC183A transistors manufactured by ITT. The BC183A is a general purpose NPN transistor in a TO-92 case. It is commonly used in fuzz pedals and has a reputation as a warm sounding silicon transistor for fuzz. A version of the BC183A, the BC183KA can be found in some vintage Fuzz Face pedals.
$0.45
Dial Plate - 0 to 100, Black on Brushed Metal
Dial plates with 0-100 indicator marks. These plates are a simple way to add panel graphics to controls. They are easy to install beneath the nut of a potentiometer like a washer. The silk screened graphics on the brushed metal plate gives projects a clean and professional appearance. 40mm Dial Plate
  • 40 mm (1.575”) outer diameter
  • 9.95 mm (0.392”) inner diameter
  • Best for 25.4mm (1”) or smaller knobs

60mm Dial Plate
  • 60mm (2.362”) outer diameter
  • 9.95mm (0.392”) inner diameter
  • Best for 40.6 mm (1.59”) or smaller knobs
$1.70
Potentiometer - Alpha, Linear, 9mm, Vertical, Dual Gang
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.
$2.55
Battery Box - Gotoh, BB-04, Single, 9 volt
Single 9 volt battery box. See P-ECB-9V1B for single battery box with removable adapter. See P-ECB-9V2 for double battery box.
$14.95
PCB - Vintage Style Circuit Board, MKII Fuzz
Colors Available:
This board is a recreation of the circuit board found in Tone Bender Professional MKII pedals. When drawing the layout, an original board was closely referenced to ensure a proper match and fit. Since the MKII boards were cut from stripboard, this board follows the same format but is completely ready for soldering with precut traces and drilled mounting holes. The build style is very straightforward on the Mk2. It is a standard stripboard build and follows a very linear circuit path across the board. The traces are gold plated making soldering easier than most stripboards. Additionally the plating provides protection from corrosion. For a detailed drawing of the parts and connections originally used on this board, please see the layout drawing linked below. There are numerous great parts choices available for this PCB.
$3.55
Chassis Box - 1590XX, Diecast, 5.72" x 4.77" x 1.55"
5.72″ x 4.77″ x 1.55″ (145mm x 121mm x 39mm) diecast aluminum enclosure. Equivalent to the Hammond P-H1590XX enclosure. This large enclosure is great for bigger projects.
$8.80
DSP Module - Accutronics, 99 Effects (Reverb, Chorus, Delay, +)
The BTSE-99FX Effect board provides 99 different digital audio effects to be used in many audio applications that require sound enhancement. Equipped with a superb quality digital effects processing engine which adds that extra punch needed to make sounds truly stand out. Applications:
  • Guitar/ Keyboard/Bass amplifiers and combos
  • Audio mixing consoles / Powered mixing consoles
  • Stand -alone stereo effect units for studio and PA usage
  • Effects pedals
$32.00
Bumper - Morley, tapered rubber feet, self adhesive
Small tapered rubber feet with self-adhesive backing (package of 20). Can be used to provide grip and slight elevation (about 0.14") when secured to most project enclosures. Great for effects pedals and rack mount units when removed from the rack.
$5.00
package of 20
Chassis Box - Hammond, 1591CTCL, Crystal Clear, Polycarbonate, 4.70 x 2.60 x 1.40"
1591T Series enclosure made of clear polycarbonate. The 1591C is a similar size to the 1590N1 / 125B diecast aluminum enclosures. Includes four cover screws and pre-installed brass inserts.
  • Ideally suited for mounting printed circuit boards.
  • Perfect for applications where parts, sensors or indicators need to be visible.
  • Crystal Clear version is almost totally transparent.
  • Integral card guides accept 1.5 mm (0.062”) P.C. cards.
  • Lap joint construction provides protection against access of dust and splashing water.
  • Designed to meet IP54.
  • Molded from flame retardant, easy to machine, translucent polycarbonate (material carries a UL flammability rating of 94V-2).
  • Lid is secured with M3 x 10 mm Phillips machine screws, threaded into integral brass bushings.
$10.95
Knob - Rogan, RB-67 Series, Small
Colors Available:
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
$2.65
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
¼" Jack - Stereo, PC Mount, for Fender® Amps '88 - '99
Fender® Style replacement ¼" stereo input jack that has 9 PCB mount terminals.
$2.40
Knob - Black, Cap, Set Screw, Marshall Style, No Indicator
Black Marshall-style knobs with a silver cap. This is the taller 0.766” version of this knob. The silver cap has no indicator line matching those found on vintage fuzz pedals such as the Supa Fuzz, Tone Bender Professional MKII, Shatterbox, and MKIII and MKIV Tone Benders. Fits ¼" shaft pots using a slotted set screw.
  • Height: 0.766 in.
  • Top Diameter:0.594 in.
  • Bottom Diameter:0.766 in.
  • Fits ¼" shaft with set screw
$2.95
Capacitor - 50V, 0.047µF, Used In Pedal Kits
Polyester Film Capacitor used in MOD® Pedal Kits. Rated at 0.047µF 50V. Tolerance: 10%. Operating temperature: -40 C to +85 C
$1.00
Transistor - 2N408, Germanium, TO-1 case, PNP
2N408 PNP germanium transistors. The 2N408 is a popular PNP for fuzz pedals and other effects. The 2N408 was popularly used in the germanium version of the Fuzzrite by Mosrite along with the 2N2613.
$4.50
Transistor - 2N1307, Germanium, TO-5 case, PNP
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.
$2.95
¼" Jack - Rean, horizontal, switched, PC mount
Horizontal 1/4" jack, all contacts switched, chrome ferrule nut
Starting at $1.20
Knob - Chicken Head, set screw, brass inset
Colors Available:
  • Fits ¼" Solid Shafts (Set Screw)
  • Chicken head knobs are used everywhere on countless amps, stomp-boxes, etc.
  • Brass Set Screw and Insert
  • High Quality Plastic
Starting at $1.30
Terminal Strip - Mini, 5 Lug, 3rd Lug Common, Horizontal
Mini size terminal strips, 1/16" thick phenolic, tin plated brass solder lugs and brackets on 1/4" centers.
$11.95
package of 5
Transistor - 2N5172, Silicon, TO-92 case, NPN
The 2N5172 is a silicon general purpose NPN transistor in a TO-92 package. The 2N5172’s typical applications include general purpose amplification and switching.
$0.30
Wire - 22 AWG Solid Core, PVC, 600V, Variety Pack
Variety pack, 10 feet for each color. Great for color-coded wiring with smaller quantities. 600V rating. Tinned copper. See photos for detail. UL style 1015, rated to 105 degrees C. Perfect for new projects or rewiring any electrical equipment. 6 Pack (6 colors, 60 total feet) includes:
  • Black
  • Red
  • Green
  • White
  • Yellow
  • Blue

​​9 Pack (9 colors, 90 total feet) includes:
  • Black
  • Red
  • Green
  • White
  • Yellow
  • Blue
  • Orange
  • Brown
  • Purple

See S-W33 for 50 foot rolls of individual colors.
Starting at $11.95
Screw - 4-40, Phillips, Pan Head, Machine, Zinc
Phillips panhead machine screw, 4-40, zinc. Designed to go through a hole or nut that is pre-tapped to form a mating thread for the screw. Has a general purpose bearing area and can be substituted in most applications for round, truss, or binding heads. Phillips drive is the most common drive used and is designed to "camout" when the screw reaches optimum tightness, thus preventing damage to the screw head.
$0.59
package of 5
Knob - Phenolic, Set Screw, Fairchild Style, Medium Pointer, 32mm
Colors Available:
Medium phenolic pointer knobs with a set screw and brass insert. These distinctive pointers are close matches for the classic knobs used on Fairchild compressors like the 660 / 670. Each pointer features a V-shaped painted inlay indicator. Fits ¼” (6.35mm) pot shafts.
  • Grip Diameter: 0.75 in.
  • Skirt Diameter: 0.935 in.
  • Length: 1.275 in.
  • Height: 0.765 in

Item Size P-K347-30-X Small P-K347-32-X Medium P-K347-52 Large P-K347-61 Extra Large
Starting at $4.99
Footswitch - 3PDT, Alpha, PC Mount
High quality PCB mount 3PDT footswitch from Alpha. The Alpha 3PDT is a great choice for a durable and reliable footswitch. Mounting nuts, washer, and lockwasher included.
  • Bushing Length: 11.5mm
  • Threading: M12 x 0.75
  • PCB mount pins
$4.30
On Backorder