A near immaculate example of the absolutely classic MXR M104 Distortion Plus Pedal.
In the middle ranges of the Output and Distortion controls, you'll find soft-clipped distortion tones that sound truly retro-authentic, especially when they're mixed with a splash of reverb. Pushing Distortion up higher produces classic fuzz tones that are finding their way onto an increasing number of albums. A welcome, enjoyable alternative to LA saturation and British crunch.