Famously the first (only?) computer that was repaired with an oil change: "Of course, Stretch came originally with an oil-cooled core memory system. Jack Worl

Famously the first (only?) computer that was repaired with an oil change: "Of course, Stretch came originally with an oil-cooled core memory system. Jack Worlton of the Los Alamos Scientific Laboratory (LASL) recalls a problem experienced during the acceptance test phase, when there was a transient memory error in the cores. The engineers worked for days to remedy the error but were unable to figure out what was going wrong. They finally hit upon the problem. As Worlton explains it, there was a piece of solder loose in the oil bath, and because the oil was constantly in circulation the solder would move and attach itself onto a core and cause an error. Then it would move and lodge onto a different core and cause an error there. It was the only error I know of that was corrected in a machine by giving it an oil change, Worlton quips." from : http://www.chilton-computing.org.uk/acl/literature/reports/p018.htm http://www.chilton-computing.org.uk/acl/literature/reports/p...