Doepfer A-101-3, Modular Phaser, 12 stage phase shifter, Works with so-called Vactrols as phase-shifting elements, Width: 30TE / 30HP / 152.0 mm, Depth: 65 mm (measured from the rear of the front panel), Power requirements: 50 mA (12 V) / -50 mA (-12 V)