Heathkit ET 3400A microprocessor trainer 1981 test and teardown
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ITT Marine Automatic Direction Finder ADF 2200 1976
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Keithley 153 Microvolt Ammeter Tube 1966
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The Desk System Centurion Lives!
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AE#187 Heathkit ET3400A Microprocessor Trainer Repair
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Rebuilding my CoCo3 Plus
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I shouldn’t have kept the $1,000,000 computer
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What happened to this Asus P5A?
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