Hmm, a cleaner and brighter version of a Deluxe Memory Man™? A faithful reproduction of the Electro-Harmonix™ Echo 600, an EXTREMELY rare pedal from the very early eighties.
Read more in the following document!
Notice: The initial run of the pcb with no version number visible needs to have the Input, Output, and Delay potentiometers wired backwards. This info is also described in the build documentation.