MXR Phase 100 SCRIPT Pedal from 70s, has 4 different modes for Intensity w/adjustable speed, in great shape for its age, uses 9v battery; not AC adapter, I’m original owner, these sell for $400-$900 on EBay & Reverb.com, check them out, $325/OBO, Cash in-person sale only, NO shipping, broker, escrow, holds or other scams, bring your amp & guitar or use one of mine