159 (NORD-1 card)

159 Memory OR, is a card that is used in the NORD-1 CPU.

Component side.

Solder side.

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Introduction

The card is made in the standard NORD-1 card format.

CPU model	Crate position
29	C30
35	C30

The logic diagram is documented in drawing 2A59.

Switches and indicators

There are no switches or indicators on this board.

BOM

This list contains the logic circuits used, passive components are not listed.

• 8 x 7401 quad 2-input NAND gate with open collector outputs
• 1 x 7402 quad 2-input NOR gate

Reference

• Hardware in NORD-1 Serial 47