Otwock, Soviet Poland Vintage Over Drive pedal, Signal Processing Laboratory
• These pedals were made in the 1982 by KOD, POLAND.
Level: controls the output level.
Tone: controls the tone (bass/treble?).
Drive: controls the amount of overdrive.
• Connectors: Audio IN and Audio OUT on standard 1/4' mono jack.
• The unit is not powered by battery, but only by external 9V DC power supply.