This Pedal is currently available.
Analog Wah/Phaser/Vibrato/Tremolo
This is for the smaller (XO) version of the pedal, produced from 2008-present. It includes an expression input for manual control of the phase position of the various effects. It uses a 24V DC power supply included with the pedal.
These merchants probably sell this module. Huh?
Electro-Harmonix The Worm Analog Wah /
Electro-Harmonix The Worm Analog Wah /
Electro-Harmonix The Worm Analog Wah /
Electro-Harmonix The Worm Analog Wah /
Electro-Harmonix The Worm Analog Wah /
Electro-Harmonix The Worm Analog Wah /