Specifications for Friden EC-132

Manufacturer: The Friden Calculating Machine Co.
Model Number: EC-132
Serial Number: Three Units in Museum
Calculator #1: 1984 (Four Counter), 1965 Sincere thanks to the sons of Clifford Rueff(Eugene, Christopher, and Roger Rueff) for donation of this machine
Calculator #2: 10663 (Three Counter), Early-1968
Calculator #3: 11945 (Three Counter), Mid-1968 Sincere thanks to Pat Scandalis for donation of this machine
Date of Manufacture: 1965-1968 [All Units]
Manufactured In: USA, San Leandro, California
Original Price: $1,950
Weight: 42 Pounds
Size: 18" Wide, 21 1/2" Deep, 18" High
Power Requirement: 70 Watts, 115V AC, 60Hz
Display Technology: CRT Display, 7-Segment Rendition
Four Levels of RPN Stack Displayed
Logic Technology: All Transistor, Magnetostrictive Delay Line Register Storage
Bit-Serial Architecture
Digits of Capacity: 13
Decimal Modes: Fixed, Thumbwheel Selectable; 0 through 13 digits behind decimal
Arithmetic Logic: Reverse Polish Notation (RPN), 4-Level Stack
Math Functions: Four Function plus automatic square root
Constant: RPN Stack Architecture, top register of stack is always duplicated when stack drops
Memories: 1, Store/Recall Only
Notes: Follow on to the famous Friden EC-130
Four-Register Architecture Prior to Serial #3902
Three-Register Architecture from Serial #3902 onward

Previous Machine: Friden 130
Next Machine: Olivetti Programma 101

Related Machines: Friden 130
Singer/Friden EC-1112
Singer/Friden 1162
Singer/Friden 1160
Singer/Friden 1166
Singer/Friden 1152
Singer/Friden EC-1113
Singer/Friden EC-1114
Singer/Friden EC-1115
Singer/Friden EC-1116
Singer/Friden EC-1117
Singer/Friden EC-1117A
Singer/Friden EC-1118
Singer/Friden 1203

Advertising: Friden 132 Datasheet [Courtesy of Mr. Lynn Cochran]
"We Introduced Dr. Shockley..."
"This engineering is winning a $5 bet..."

Reading: Friden EC-132 Temporary Service Manual, August, 1965
Four-Counter Friden EC-132 MDD (Computer Printout), June, 1965 [PDF, 188 Pages, 133MB]
The Friden 130: The World's Second Electronic Calculator [Nicholas Bodley]
My Life & Times at Friden [Dick Ahrens]
US Patent 3526760
Friden 132 Square Root Mathematics [PDF, 3.3MB]

Other Material: Cliff Stoll on the Friden 132 Calculator [Courtesy of Popular Mechanics magazine.]

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Copyright ©1997-2019, Rick Bensene.