Specifications for Singer/Friden EC-1115

Manufacturer: The Singer Company, Friden Division
Model Number: EC-1115
Introduced: February 4, 1970
Serial Number: 93487
Date of Manufacture: Mid-to-Late 1970
Manufactured In: Japan (By Hitachi for Singer)
Same machine marketed in Asia by Hitachi as the ELCA-32
Original Price: $695
Weight: 10 Pounds
Size: 10" Wide, 13" Deep, 4" High
Power Requirement: 17.5 Watts, 115VAC, 50/60Hz
Display Technology: 12 Nixie Tubes, Hitachi CD-79
Logic Technology: 45 Small/Medium-Scale P-MOS IC's, Hitachi HD31xx-Series
HD3101: Dual 8-Bit Shift Register
HD3103: Quintuple MOSFETs
HD3104: Dual 4-In AND Gates, plus Dual Inverters
HD3106: Dual 2-In AND Gates and Dual 3-in AND Gates
HD3107: Quad D-Type Flip Flops
HD3109: 60+4+4 Bit Dynamic Shift Register
HD3112: Serial Delayed Binary/BCD Full Adder/Subtractor
HD3115: Triple RS Flip Flops
Digits of Capacity: 12 digits
Decimal Modes: Fixed at 0, 2, or 5 digits behind decimal on output
Floating decimal on input
Arithmetic Logic: Arithmetic
Math Functions: Four Function
Constant: [K] keyboard key enables, Multiply/Divide Only
Memories: None
Performance: Clock Frequency: 60KHz[+/- 8KHz]
Addition/Subtraction: 50ms
Multiplication/Division: 400ms
Notes: OEM Version of Hitachi ELKA-32

Previous Machine: Friden 1114
Next Machine: Friden 1116

Related Machines: Friden 1114
Friden 1113
Friden 1117
Friden 1118
Friden 1117A
Friden 1203
Friden 1152
Friden 1166
Friden 1166
Friden 1166
Friden 132
Friden 130

Documents: "Small size, big capagilities..." [PDF: 2 Pages] [1MB]
Friden EC-1115 Service Manual [PDF: 108 Pages] [88MB]

Back to Exhibit
Back to Calculator List

Copyright ©1997-2023, Rick Bensene.