Early
Electronic
Calculator
Canon 161 Calculator
Schematic
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Section
Page
Title & Contents
1
Notes
2
Block Diagram
3
Modules (Gates and Display)
4
Modules (Flip-Flops)
5
Timing
6
Keyboard
7
Control (Flag Registers 1)
8
Control (Flag Registers 2)
9
Control (State Machine)
10
A & B Counters
11
Arithmetic and ACC Register
12
IR Register
13
ME Register, Shift Pulse Gens & Zero Gates
14
PC (Point) Counter
15
DC (Digit) Counter
16
Power Supply
17
Timing Diagram
18
Connectors Nbb1p & Nbb2p
19
Connectors Nbb3p & Nbb4p
20
Modern Controller/Monitor Unit (MCMU)
21
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EEC