Early
Electronic
Calculator
Commodore DAC-612 Calculator
Schematic

Section Page
Title & Contents 1
Notes & Gate Identification 2
Block Diagram 3
Timing 4
Control (Part 1) 5
Control (Part 2) 6
Control (Part 3) 7
Registers 8
Arithmetic 9
Decimal Point 10
Display 11
Power Supply 12
Timing Diagram 13
IC Pinouts 14
IC Notes & Gate Construction 15
Connectors 16

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