158-II (NORD-1 card)

158/II Memory buffer, 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	C26, C27, C28, C29
35	C26, C27, C28, C29

The logic diagram is documented in drawing 2A58/II.

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.

• 6 x 7400
• 1 x 7401
• 3 x 7402
• 4 x 7440

Reference

• Hardware in NORD-1 Serial 47