HP 1600A Logic State Analyzer Table and Map Switch Board #60508F Rev A with 7 Push buttons and a TI SN74L00N (HP 1820-0583), a Fairchild (HP-1820-0071) Integrates Circuit on a Gold plated board. Also used a Sprague Thick film circuit 1810-0183 and 4 220 ohm resistors. Molex pin connectors for connection to other functions.
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