DIY clone of Mad Professor Deep Blue Delay using circuit board layout from Madbean Pedals Build documentation at MadbeanPedals.com. Before I started collecting arcade machines, I thought a 1972 coin-op video game named “Computer Space” was quaint. Looking back with a more informed perspective, I know that game is no joke. Even though the original Deep Blue Delay has been discontinued, for most builders, I would recommend just buying one used from Reverb.com. Many folks in the build thread have struggled getting it right. Build Thread at MadBeanPedals.com Sold to Bryan G. of The Bronx, USA in Nov. 2022. Thank you Bryan for buying my handcrafted DIY project.