Look-Ahead Logic for 74181

This document contains a circuit schematic titled 'Look-Ahead Logic for 74181', identified by the number M191-0-1. It details the connection of two DEC74182 look-ahead carry generator chips along with supporting capacitors. The document includes a note specifying that it is for test and maintenance purposes only and includes a transistor and diode conversion chart. The schematic is dated August 21, 1970.