Offer Details

For sale is a vintage Electro-Harmonix Doctor Q Envelope Follower / Auto Wah pedal, made in New York City, USA in the late 1970s.The Doctor Q is one of Electro-Harmonix's most distinctive vintage effects, producing funky, touch-sensitive filter sweeps that respond dynamically to your playing. From subtle quack to dramatic auto-wah sounds, it has become a favorite among guitarists and bassists looking for classic analog envelope filter tones.This pedal features the desirable early folded-metal enclosure with the black and silver finish and yellow Doctor Q graphics. The circuit board and components appear original, and I have included detailed internal photographs so buyers can inspect the electronics for themselves.Condition:Tested and functioning.Footswitch engages properly.Original graphics remain bright and easy to read.Moderate cosmetic wear from normal use including scratches, scuffs, and edge wear.Hook-and-loop material attached to the bottom plate.Interior is clean and appears largely original.Please review all photos carefully as they are part of the description.SpecificationsManufacturer: Electro-HarmonixModel: Doctor Q Envelope FollowerEffect Type: Envelope Filter / Auto WahEra: Late 1970sMade In: New York City, USAControls:Range knobAuto/Bass mode switchBypass: Mechanical footswitchInput: 1/4"Output: 1/4"Finish: Black/Silver with Yellow GraphicsWhat's IncludedElectro-Harmonix Doctor Q Envelope Filter pedal onlyNo box, manual, or power supply included