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frugal technology, simple living and guerrilla large-appliance repair
Mon, 25 Dec 2017

Repairing a 1960s mainframe: Fixing the IBM 1401's core memory and power supply | Ken Shirriff

Repairing a 1960s mainframe: Fixing the IBM 1401's core memory and power supply | Ken Shirriff http://www.righto.com/2017/12/repairing-1960s-mainframe-fixing-ibm.html