Here is a vintage 1973 Ampeg Phazzer model “8830” electric guitar effects pedal. This particular example is near mint all original condition and includes the original box! The Phazzer utilizes a single “speed” control knob which features a very wide sweep from subtle and slow to Leslie fast. Inside is a trim pot which allows the user to further refine the modulation parameter. A highly underrated and overlooked unit, this simple phaser pedal is capable of producing very sweet Uni-Vibe textured phase at a fraction of the price.