Electro-Harmonix Attack Decay Tape Reverse Simulator (VINTAGE) 80's 117 Volts (or 220 with adap.)
With the titular Attack and Decay times being individually adjustable, this thing is capable of producing far more than simple "Reversed Tape" sounds. Think of it for what it is: with the balance knob turned completely clockwise, this is an AR envelope generator: Short attack and decay settings will give you a koto sound; long attack, no decay for a bowed effect; no attack, long decay... well, that's what's happening with your guitar when the pedal's off anyway, but you get the idea. Toss in an selectable "Edge" distortion circuit (on the back of the unit), and you've got yourself an interesting machine.
Sets the sensitivity of the effect to the input signal.
Mixes dry signal with effected signal.
Sets the attack time.
Sets the decay time.
Adds harmonics to the signal.
Turns on/off a high gain distortion