ECC82/12AU7 Guitar pedal demonstration of some basic sound that you can get from it. It is a versatile little (big) pedal that incorporates preamp tube sound and some basic controls that nicely affects the sound coming from your guitar with a soft tube clipping. It has a Gain-Tone-Volume-Mid Boost (Low Cut) features much like any other pedal that amplifies the guitar sound.
It can be used with electric keyboards, guitars, baritone and bass instruments. Interesting thing to point out is the use of this effect pedal as pre, or a post booster. It can boost your amp, and your pedals!