Kits & Effect Pedals

The Thunderdrive is an overdrive pedal kit that will provide a signal boost at low gain settings and its own distortion at maximum gain settings. You can use it to push your preamp into overdrive or as a source of smooth distortion. Adjusting volume control and gain control results in a wide variety of tones in spite of its simple construction. This pedal is capable of overdriving the preamp section of your guitar amp or adding its own layer of distortion at lower volume. Using point to point wiring and easy to follow instructions you can have a working overdrive pedal in a matter of hours. All you need to provide is solder and a soldering iron. Uses 9 volt battery which is not included.

The Piledriver is a clean-boost kit that will provide up to 38dB of gain to your guitar signal. Use it to push your preamp into overdrive or as a line driver if you are experiencing signal degradation from your effects chain. This is a simple kit and great for beginners!

To celebrate the 10 year anniversary of Mod® kits, we are re-releasing a new and improved version of the original Mod pedal - The Rattler. This fan favorite is making its long-awaited comeback as The Rattler Returns. The Rattler Returns offers the same over-the-top fuzz as the original Rattler and features several new upgrades. The circuit has been overhauled for a wider spectrum of fuzz that is steady when used with any pickups, pedals, or amps. The Rattler Returns preserves the diode clipping, a crucial component of the classic raw fuzz/distortion in the original but also features a diode lift switch. With the lift engaged, the pedal can hit volumes that easily drive any tube or pedal with fuzzed out guitar tones. The pedal now operates on +9V, so standard DC power supplies can be used in lieu of a battery if you choose.

A T-Filter Pedal Kit - the Tea Philter pedal produces a fixed wah tone allowing you to lock it in without rocking the pedal back and forth. Every guitar/wah combination has a certain sweet spot that is perfect for lead and chord work. The Tea Philter lets you dial in everything from your favorite vocal mid-range tone to thick lows. Using point-to-point wiring and easy-to-follow instructions you can have a working fixed wah pedal in a matter of hours. The effect pedal operates on a 9V battery. For a longer lasting option, a 9-volt adapter can be purchased separately.

The MOD102+ expands on the same all analog vacuum tube classic American circuit design combined with a British style Class A output section as the Original MOD102 with added additional “+” features. These special features include a three position progressive toggle switch for off-standby-power and additional push-pull functionality for each control - pull out the bass control knob for “mid boost”, pull out the treble control knob for “bright”, pull out the volume control knob for “turbo”.

The Contortionist II kit is an all analog, high octane fuzz box. It produces fuzz with layered octave overtones similar to those produced by an electronic-bow. The frequency multiplier circuitry creates harmonics that swell and recede depending on gain setting, pick attack, neck position and pickup. This is a high gain circuit that can put out up to 2 volts and will provide ample amounts of sustain. The Contortionist II has all the features of the original Contortionist with an added tone control for a wider range of sounds, and an LED that lights up when the unit is activated.

The Wave is a versatile stand-alone, tube driven analog spring reverb unit kit. It can be used in front of your guitar amp or as a line-level analog reverb effect for the recording studio. Two controls allow you to serve up a wide range of wetness from just a touch to over the top psychedelia. The Dwell control adjusts the input signal level driving the tank and the Reverb control adjusts the level of output reverberations from the tank. The Wave's all tube design utilizes four dual triode vacuum tubes - three 12AX7s and one 12AT7 - and comes with a MOD® three-spring reverb tank. MOD® reverb tanks are deemed the closest to the original reverb tanks from the '60s made today. The Wave's reverb function can be switched in and out pop-free via the front panel toggle or with a footswitch. Footswitch sold separately (see P-H470 for compatible footswitch).

The Persuader Deluxe utilizes a Darlington preamp to push cascaded triode vacuum tubes into distortion. A boost switch provides an additional layer of flexibility with added gain and a little extra bottom end. An LED indicator lights up when the Persuader Deluxe is engaged and not in true bypass mode. Operates on a 9V battery or AC adapter, which is not included. When completed, this pedal draws considerable current and battery life will be short. The Godlyke 9-volt adapter (M-PAS-S) may be purchased separately to power your new pedal.

The Rock Bottom is a bass fuzz kit that gives you all of the sizzle you'd expect from a vintage fuzz without sacrificing those low frequencies. Use the blend pot to set your fuzz levels and dial in the volume to get that sound you need. This versatile pedal can be used for the sludgiest bass tones to the cleanest boost and everything in-between.

The MOD 102 is a great place to start for those interested in building their own tube amp. It is based on a classic American tube-circuit design combined with a British style Class A output tube section. At low volume it produces a clean chimey tone that moves into smooth overdrive at higher volumes. All parts are included along with a pre-drilled steel chassis, wire and tubes (1 EL84 and 1 12AX7). Puts out at least 5 watts. The chassis layout is open for easy assembly using the clear, easy to follow instructions.

The Step Ladder is a passive input attenuator using high quality components for excellent reliability. True-bypass mode provides the maximum signal level. The attenuator pot and two toggle switches allow for flexibility in the amount of signal attenuation when not in bypass mode. Treble bleed capacitors in the circuit retain crisp high frequencies even at maximum attenuation. The Step Ladder is ideal for anything from getting a slight boost while playing single-note acoustic guitar leads or for jumping from clean to overdrive in a high-gain electric guitar amp.

The Penetrator is a treble boost pedal kit with enough gain to cut straight through any mix. This pedal adds glistening harmonics that get loud enough to saturate your amp’s front end. Adjust the level knob to vary the output so there’s no mistaking when you kick this pedal in. Great for solos or when you need your guitar front and center.

Adjusting volume control and gain controls provides a wide variety of tones in spite of its simple construction. The Turbo switch provides an additional boost in volume and less internally generated distortion. It is capable of overdriving the preamp section of your guitar amp or adding its own layer of distortion at lower volume. The current draw of this pedal is very low at 1.3 milliamps, allowing for long battery life.

The Trill tremolo pedal offers classic tremolo tones in an easy to build kit. The Trill's speed knob provides a wide range from a very slow to rapid fire effect. The depth knob varies the ratio between effected and dry signal. Using modern, low noise transistors makes operation of The Trill quiet with no signal drop when engaged. The Trill uses true bypass foot switching so it is out of the signal path when not engaged. All you need to provide is solder and tools! Uses 9 volt battery which is not included.

Genuine Fender® Mid Boost upgrade kit for Strats with active electronics. This circuit is used in the signature Eric Clapton and Buddy Guy strats and is commonly referred to as the Clapton Boost. The Mid Boost knob adjusts gain from 0 dB (no boost) to 25 dB (maximum boosted mids). This boost sounds great clean and adds powerful control to distortion.

The Verb Deluxe kit is built around the Belton Digi-Log Mini Module (P-RBTDR-2H-X) for a great digital reverb sound. The Belton Digi-Log module was built as a replacement for traditional spring reverberation units. Features include both Dwell and Mix controls, allowing the dry signal to be blended with the processed signal from a just hint of reverb to deep, cavernous echoes. The dwell control adds an extra flexibility, providing a full palette of sweet reverb sound. The effect pedal operates on a 9V battery. For a longer lasting option, a 9-volt adapter can be purchased separately. The Godlyke 9-volt adapter (M-PAS-S) may be purchased separately to power your new pedal.

The K-GMOD-1 is a vintage style wiring kit for Telecaster guitars. Use this kit to upgrade your current Tele electronics to high quality parts. This kit also includes a treble bleed mod for the volume pot to enhance clarity with lower settings and comes with detailed instructions and all the parts you need to make your modification.

This radio kit will cover the AM radio band along with the SW radio band. Power for this receiver is 1.5 V DC for the filaments and 45V DC for the plate current. A D cell and five 9V transistor batteries wired in series will work to power this radio. A 2000 ohm headset or an audio amplifier is required.
Requires two T-1T4_DF91 tubes (not included).

The K-GMOD-3L is a vintage style wiring kit for Les Paul guitars. This version comes with long bushing pots for carved top Les Paul’s. Use this kit to upgrade your current Les Paul electronics to high quality parts. This kit also includes a treble bleed mod for the volume pots to enhance clarity with lower settings and comes with detailed instructions and all the parts you need to make your modification.

The Saturator is an overdrive pedal kit that can cover a wide range of gain effects, transitioning smoothly from a massive clean boost to a warm and saturated distortion with the turn of a knob. The saturation is controlled with the Soak knob, which dials in the amount of symmetrical soft-clipping applied to the guitar signal. When fully counterclockwise, the signal is unaffected and clean. Rotating the knob clockwise will incrementally increase the soft-clipping, morphing from a clean signal through subtle-to-heavy saturated overdrive sounds and straight into distortion territory. The Level knob sets the overall volume of the clean or saturated output. Unity gain is at roughly 8 o'clock. With the Soak set to clean, rotating the Level knob clockwise will increase the level to upwards of 30dB.

The Erratic Clutch Deluxe is a unique effect pedal kit that gives you fuzzy square wave distortion as well as a monophonic sub-octave square wave using a total of only four transistors. The two signals can be used individually or mixed together for a raw and sonically rich synthy output. Full of character and quirk, this pedal will give you a truly original sound. The middle knob is the bias control. This adjusts the pulse width in the initial fuzz stage of the pedal. Set this knob to fit your pickups and playing style. The closer to the center the longer the note will sustain but with that comes more chaotic tracking for the divider. Moving it more clockwise or counterclockwise will give you more predictable note tracking on the divider with less sustain.

The K-GMOD-3S is a vintage style wiring kit for Les Paul guitars. This version comes with short bushing pots for flat top Les Paul’s. Use this kit to upgrade your current Les Paul electronics to high quality parts. This kit also includes a treble bleed mod for the volume pots to enhance clarity with lower settings and comes with detailed instructions and all the parts you need to make your modification.

The K-GMOD-2 is a vintage style wiring kit for Stratocaster guitars. Use this kit to upgrade your current Strat electronics to high quality parts. This kit also includes a treble bleed mod for the volume pot to enhance clarity with lower settings and comes with detailed instructions and all the parts you need to make your modification.

The RAT2 is the classic distortion pedal in the Pro Co RAT family. It has a unique tone structure that other effect devices are measured against. The beauty of the RAT 2 lies in its versatility. Used as a primary distortion, it excels at arena rock rhythm tones and soaring leads.