Billy's pulse modulator, "back from the shop and working fine!!"
One of EHX's first pedals (and very rare nowadays), a 3-in-one tremolo w/ signal booster. 3 knobs for pulse speed, 3 for pulse volume, and knobs for boost volume and pulse attack. Billy brought his to the shop and posted the pic of it "working fine" on facebook on 2011/06/21.
[product info on NoiseGuide]