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A comment on IBM mainframe tube module part II: Powering up and using a 1950s key debouncer. Parent comment

Re:IBM mainframe tube module part II: Powering up and using ... by walshemj on Sunday January 14, 2018 @03:46PM (#16146303)
At one place i worked awe had a brand new state of the art supermini from PR!ME. Oneday we had a film crew turn up but they filmed our old PDP/1140 as it had lots of blinking LED's
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