Worth reading — Alan Turing's secret Delilah project
Alan Turing taught himself electronics from an RCA vacuum tube manual on a ship crossing the Atlantic in 1943. Within months he was in a Nissen hut in the English countryside, building a working voice encryption device that shrank a 50,000 kilogram Bell Labs room-filling machine down to three shoebox-sized units. Donald Bayley was a young electrical engineering graduate who arrived at Hanslope Park in 1944. He found Turing’s soldered circuits looking like a “spider’s nest” and promptly dragged him through breadboarding boot camp.