Pedal Parts / DIY

Op-Amp - OPA2134, Dual, High Performance Audio, 8-Pin DIP
OPA2134 SoundPlus™ Audio dual op-amp with low distortion, low noise and precision. The OPA2134 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 OPA2134 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 OPA2134 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.
$5.40
Chassis Box - 1590BB, Diecast, 4.71" x 3.70" x 1.18"
Colors Available:
Chassis box perfectly suited for effects pedals and other DIY projects.
Starting at $5.40
Knob - Phenolic, Set Screw, Fairchild Style, Skirted
Phenolic skirted knobs with set screws and brass inserts. These skirted circular knobs are a close match for the classic knobs used on Fairchild compressors like the 660 / 670. They feature a V-shaped painted inlay indicator on the skirt as well as a dot indicator on the top of the grip. Fits ¼” (6.35mm) pot shafts. Pairs nicely with P-K347-30-X, P-K347-32-X, P-K347-52, P-K347-61 (see photo)
Starting at $5.30
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
  • 3-Position
  • ¼" mounting hole diameter
  • Double pole/Double throw (DPDT)
  • Solder lugs
Starting at $5.25
Nut - Fender®, Hex, for Rean Jacks
Hex nuts for Rean jacks. Package of 12 Genuine Fender replacement jack nuts: 7/16-20 x 1/8 nickel-plated Used with many Fender amplifier jacks
$5.25
package of 12
¼" Jack - Pure Tone, Stereo, Double Open Circuit
Colors Available:
Pure Tone has developed a high quality 1/4" three pole (stereo) jack using a new patented design that improves upon and offers a more reliable connection than standard 1/4" jacks. The Pure Tone design features two springs for both the tip connection, a spring for the ring, and an additional spring for the shield connection. These help to secure the plug into place and create a greater surface area connection at contact points to improve stability and signal integrity. These jacks also increase the current capability of 1/4" connections.
Starting at $5.25
¼" Jack - Fender®, PC Mount, Mono
Original 4-pin Fender jack. Fits Fender amplifiers from 1988 - 1999. PC mount.
  • Direct replacement four-pin mono amplifier jack
  • Includes lock nut and washer
  • Fits Princeton® Chorus, Pro 185, BXR series, Stage™ 112SE, Ultimate Chorus™, Roc Pro™ Series, Performer series, Bronco™, '94 Twin®, Princeton 112+, Deluxe 112+, Automatic™ GT and Blues Junior™ amplifiers
$5.25
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
Terminal Strip - 5 Lug, 5th Lug Common, Horizontal, package of 5
Standard size terminal strips, 1/16 thick bake lite tin plated steel solder lugs and brackets on 3/8" centers. 5 lug 1 ground fifth lug common.
$5.00
package of 5
Footswitch - 4PDT, Black, Solder Lugs
Quad Pole, Double Throw (4PDT), latching footswitch with 12 solder lugs.
$4.99
Terminal Strip - 5 Lug, 3rd Lug Common, Horizontal
Standard size terminal strips, 1/16" thick bakelite, tin plated steel solder lugs and brackets on 3/8" centers.
$4.99
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
Jumper Test Lead Set - Clip 35mm, Total Length 24", 22AWG
Set of 10 Jumper Test Leads " Alligator Clips 35mm each. Total Length 24", 22AWG wire. Black, Red, White, Yellow, Green
$4.99
package of 10
Switch - Carling, Submini Toggle, SPDT, 2 Position, PC Pins
Carling submini toggle switch, SPDT, 2 position, .195" mounting hole diameter, 0.236" bushing length.
$4.95
Transistor - GT309E, Germanium, USSR Saucer Case, PNP
New old stock Soviet GT309E transistors manufactured in Ukraine. The GT309E is a germanium PNP transistor in a very low profile case. The case has a 0.29” diameter and is only 0.1” thick. These have very low leakage and work well in a variety of fuzz pedal builds.
$4.95
¼" Jack - Peavey, Mono, PC Mount, non-insulated
12 ½" mm, mono, non-insulated, rean, PC mount.
$4.95
Switch - Carling, Mini Toggle, 3PDT
Carling mini-toggle switch, 3PDT, ideal for stomp boxes, phase switching, coil-tapping, series/parallel pickup switching in guitars.
  • 0.354" bushing length
  • 1/4" mounting hole diameter
  • On-On Three pole/double throw (3PDT)
$4.95
Transistor - ACY31, Germanium, TO-1 case, PNP
ACY31 PNP germanium transistors. The ACY31 is a popular PNP for fuzz pedals and other effects. The ACY31 can be found in the rare CSL Super Fuzz version of the MKIV Tone Bender. This transistor is in a TO-1 package with long leads commonly found on germanium transistors.
$4.95
¼" Jack - Fender®, Stereo, for Amps 1999-Present
Fender R/A 1/4" stereo jack. Used 1999-present. Hex nuts not included (S-H510), bushing length = 0.34".
$4.95
Sold by the package of 2
Transistor - TI377, Germanium, SO-2 metal case, PNP
TI377 PNP germanium transistors from Texas Instruments. The TI377 is a great PNP for fuzz pedals and other effects. This transistor is in a metal SO-2 package with long leads commonly found on germanium transistors. This package with the gold leads visually matches the 2G308, 2G309, and 2G381 transistors found in Zonk and Tonebender MKI fuzz pedals.
$4.95
Switch - Carling, Mini Toggle, SPDT, 3 Position, Solder Lugs, Short Bat
Carling, SPDT mini toggle with short actuator, 3 positions, ¼" mounting hole diameter, 0.354" bushing length.
  • 0.354" bushing length
  • 3-Position On/Off/On
  • ¼" mounting hole diameter
  • Single pole/Double throw (SPDT)
  • Solder lugs
$4.95
Potentiometer - Omeg, Linear, 20mm, Panel Mount, 100KΩ
High quality panel mount potentiometers from Omeg. These made-in-UK pots match the vintage Radiohm pots found in many vintage fuzz effects such as the Fuzz Face and Tonebender pedals and are a favorite for vintage style builds. They feature a high quality conductive polymer track that offers improved stability and extended life. Includes two mounting nuts and one lock washer. Features
  • ⅜ in. Bushing
  • PCB Through Mount
  • Linear Taper
  • Made in UK
  • Life Expectancy of >20,000 cycles (tested at 30 times per minute)
  • Conductive polymer (plastic) track (over twice the life of carbon tracks)
  • Rotation angle: 300° ±5°
  • Tolerance on Rated Resistance: ± 20%
$4.95
Switch - Carling, Mini Toggle, SPDT, 3 Position, Solder Lug
Carling mini-toggle switch, SPDT, Solder Lug, 3-Position, On/Off/On
$4.95
Transistor - AS394CH, Matched Pair, Alfa, TO5-8 case, NPN
The AS394CH is a junction isolated ultra well-matched monolithic NPN transistor pair with an order of magnitude improvement in matching over conventional transistor pairs. Electrical characteristics of these devices such as drift versus initial offset voltage, noise, and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor. Extrinsic base and emitter resistances are very low, giving very low noise and operating over a wide current range. To guarantee long term stability of matching parameters, internal clamp diodes have been added across the emitter-base junction of each transistor. These prevent degradation due to reverse biased emitter current, the most common cause of field failures in matched devices.
$4.95