The Tube Reamer is a modified version of the classic Ibanez Tube Screamer overdrive pedal. It removes the input and output buffers and the tone control stage, while implementing a different gain control. The circuit has been improved upon by reverting to the original Tube Screamer gain control, expanding the gain range, and adjusting component values to retain more midrange frequencies in the signal. Additionally, a second small gain stage has been added to increase the output level of the circuit. The pedal can be used with various dual op-amps, such as JRC4558, TL072, and NE5532.

Knobs:
1. Gain Control: Adjusts the amount of overdrive and distortion.
2. Level Control: Controls the output volume of the pedal.
3. Tone Control: Adjusts the overall tonal character of the overdrive effect.

Summary created by AI from the original source.