Based on the legendary Rat circuit, you know what it do!
- Filter is a tone control. It works backwards from the traditional tone control operation, cutting treble as you turn it clockwise.
- Distortion controls the amount of gain in the op-amp gain stage that is then clipped in a later stage.
- Volume controls the overall output of the effect.
In addition, there are two modifications included for added flexibility:
- Sweep changes the cutoff frequency of one of the high-pass filters in the op-amp stage, allowing more low end to pass through and thickening the tone.
- Clipping (toggle switch) selects between different sets of clipping diodes which changes the character of the drive tone.
Ships fast and free cuz that's how we be!