Very Good Condition 1979 MXR Dyna Comp analog compressor pedal featuring the classic CA3080 operational transconductance amplifier (OTA) chip. Vintage Characteristics Circuit Design: Uses the iconic CA3080 OTA chip, giving it a distinct, warm, and squishy compression sound. Controls: Features two simple knobs: Output (overall volume) and Sensitivity (amount of compression/sustain).Power: Vintage 1979 units rely solely on an internal 9V battery, lacking an external DC power jack.Tone: Known for coloring the sound, adding rich percussive attack, and singing sustain favored heavily by country and rock guitarists. Pedal has cosmetic scratches and wear. Fully functional exactly as intended by manufacturer.  Date verification on internal CTS pots (137 7951) Immediate and safely packaged free economy shipping with tracking.