ODI by Pettyjohn Electronics - The Classic Overdrive, Reborn / 2020 Yellow

Product Overview Whether you have played the original pedal or not, you will experience instant sonic nostalgia when you plug in to the ODI, recognizing the tone heard on countless records over the last four decades.

The inspiration to make this pedal is a personal one to circuit designer Stephen Pettyjohn. Stephen’s first overdrive pedal back in high school was a 1978 Boss OD-1 and it served as his main overdrive for more than 10 years. He sold it when the prices for an original went sky high a few years ago but missing “that” sound he set out to recreate a pedal that captured the tonal characteristics that he loved about the original while adding the features he always wished he has on the original.

The ODI features a streamlined control set for quickly dialing in killer vintage drive tones! There are knobs for Level, Gain, Lows and Highs, analogous to the other CORE series pedals.

Features

• Vintage inspired overdrive with extended tone control.

• Extended gain range compared to the original, specifically with better low gain characteristics.

• Buffered Level control for no tone suck or loading with other pedals.

• CORE series wide-range tone controls.

• LOWS circuit that sweeps from 30Hz to 1kHz before the GAIN stage, which interacts with the distortion.

• Active 18db/oct sweepable HIGHS control, comes after the gain stage with a wide sweep from 22kHz down to 1 kHz, it can powerfully shape the harmonics content.

• High headroom with internal doubling from 7v-18v power input.

• Draws under 100mA.

• Quiet bypass relay based true-bypass system for quiet switching.

• Designed for guitars, bass and keys.

• Low noise with premium analog parts.

Gain Control
The gain is set by a unique eight position rotary switch and provides an inordinate amount of tone shaping while being intuitive to use. This is due to the rotary switch providing an increased range of gain which can not be found in standard pots. With this extra gain the RAIL provides significantly improved processing on the high levels at each increment of gain.

Step your way from low gain distortion (which cleans up nicely) all the way up to Infinity mode. Infinity mode simulates infinite gain and is by far our craziest fuzz setting we have ever engineered, complete with a light musical gating effect.

This effect is made even more fun thanks to our dual power rail design, which can scale from +/-6v to +/-18v, with the internal supply mirroring whatever input voltage you apply via the external power supply. Lower the voltage, lower the headroom and increase the clipping amount. There is a sweet spot for everyone, so experiment to find your perfect fuzz tone.

Level Control
The level control has been carefully placed in the circuit to control the overall level of the signal and help deal with the huge amount of gain.

It is also fully buffered from the outside world and will not load or tone suck, making the RAIL one of the few fuzz pedals that actually likes being stacked. Be sure to adjust the level control for each gain step and for each operating voltage.

Lows Control
The lows control has been re-designed for the RAIL and features an active 18 db/octave High Pass Filter with a huge sweep range from sub 30Hz to beyond 1kHz, for precise and powerful control over the low frequencies.

This control is located before the gain stage and greatly impacts how the fuzz engine overloads, so keep this in mind as you experiment with the control at the extremes and you’ll find a vast array of distortion and fuzz tones just by sweeping the low control.

Highs Control
The high control has been re-designed as well for the CORE series and is now fully buffered against any external loading making it more robust than ever.

The RAIL generates a huge amount of high end harmonics and you can easily tame it or unleash the wrath with this active 18 dB/octave, Low Pass filter that sweeps from 20kHz down to 1kHz.

High Voltage Power
The CORE Series is built with an updated dual rail internal power supply that mirrors whatever power you apply. It works great from 6v up to 18v, doubling whatever you put in.

Since the RAIL works by essentially slamming the circuit into the power rails, the voltage you put in greatly affects the character of the distortion and fuzz as well as the output level.

Power Requirements
Clean, regulated, isolated power from 9v-15v (200mA) center tip negative jack (standard pedal adapter).

*Please note that we can not guarantee perfect operation of every power supply. Some are not well regulated and may cause extra noise if used. One known example is many of the voodoo labs power supplies have a high current, non-regulated output that will dip below 9v if used and cause high noise floor. Most customers report it works fine on the 12v outlet. If you hear a high noise floor, try another power outlet!

Quiet Bypass
The RAIL features a big update first introduced in our flagship Foundry MKII line: our quiet bypass switching system. It is a true bypass, relay based system for minimum pop when engaging the effect.