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Friden 1162 Circuit Board #4

Board #4 in the 1162 calculator contains logic primarily related to general control functions of the machine.

Board #4 contains 18 DTL integrated circuits. Along with the ICs, there are 26 diodes and one capacitor.

The bare circuit board has Part # 7002245 Revision 1. The completed assembly has Part # 7002244.

Text and images Copyright ©1997-2023, Rick Bensene, The Old Calculator Museum.