MXR GT-OD/ZW44. Open the switch for the ZW44, close for GT-OD. (They’re practically the same circuit)
Op amps are NE5532
BJT is MPSA14
Diodes are 1n1418
Pots are linear taper
Circuit can be found at https://barbarach.com
(adapted from original schematic by Gottfried Divos)
