R series PDP-8 board information and R113 NAND/NOR Gate
This board contains five gates. The N in NAND/NOR stands for NOT. The gates output have an inverter so they perform the logic NOT AND for active low or NOT OR for active high signals. The later TTL 7400 quad NAND gate performs a similar function to this board. This board cost $20 in 1968.
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