179 (NORD-1 card)

179 Punch buffer, is a card that is used in the NORD-1 CPU.

Component side.

Solder side.

Introduction

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

CPU model	Crate position
29	D28 (can also be a 145 in this position)
35	D28

The logic diagram is documented in drawing 2A79.

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.

• 1 x 7400
• 2 x 7402
• 1 x 7404
• 2 x 7410
• 1 x 7413
• 1 x 7437
• 2 x 7475
• 1 x 74121

Reference

• Hardware in NORD-1 Serial 47