ELECTRO-HARMONIX Q-TRON Effects Pedal and just a couple of

and just a couple of the smallest scuffs on the case - again

the face has scuffs and scratches scattered across it

as is this page from the Hiwatt catalogue showing the Slave spec:

Some info from the GML site below

ELECTRO-HARMONIX Q-TRON Effects Pedal and just a couple ofOriginal "large box" Electro Harmonix Q Tron Envelope Filter pedal in very good condition and perfect working order, for sale with original wooden box. This pedal is the envelope filter based on the Mu tron III design, and it sounds very similar (certainly better than the terrible Haz Labs reissue Mu tron). Mike Biegel, inventor of the Mu tron recommends this pedal as the nearest equivalent to an original Mu tron. A whole world of funky filtering can