This Zoom ZAD0006D is THE AC Adapter for use with 1010, 2020, 3030, 4040, 8080, 1201, 1204, 505, 506, 508, 508, 509, 510, PS-02, GM-200, GFX-707, BFX-708, RT-123, RT-234, RT-323, ST-224, RX-300, PFX9003, Hyper lead, Power Drive, Tri-Metal and Ultra Fuzz.