Unisonic 767-1224 Desktop Electronic Calculator

This Japanese-made non-printing desktop electronic calculator has an array of nine digit keys with a zero bar and a decimal point key below. Immediately right of these is a column of four function keys. Right of these are a clear/clear entry key, a sign change key, a percentage key, and an equals key. Left of the digit keys are a power switch, a memory switch, a memory recall key, and a memory clear key.
Behind the keyboard is a twelve-digit display. The power adapter fits into the base of the machine, and has a plug extending from the back. A paper sticker on the base of the machine gives operating instructions. A mark just above the keyboard reads: Unisonic 767-1224. A paper sticker on the bottom gives instructions for operating the calculator. It is marked in part: MADE IN JAPAN. A mark on a sticker below this reads: NO. 04956. The number is written in pen.
The North American Foreign Trading Corporation of New York City, N.Y., first used the trademark Unisonic in 1968 for vacuum tubes, resistors and other electronic devices. In 1972 it extended the trademark to include calculators, receiving the registration in 1975.
Compare other Unisonic electronic calculators, 1986.0988.004 and 1986.0988.005.
Currently not on view
Object Name
electronic calculator
date made
ca 1975
Unisonic Products Corporation
Physical Description
plastic (keys, base of case, display cover material)
metal (top of case material)
rubber (cord material)
overall: 12.192 cm x 18.542 cm x 5.842 cm; 4 13/16 in x 7 5/16 in x 2 5/16 in
place made
ID Number
catalog number
accession number
See more items in
Medicine and Science: Computers
Desktop Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of John B. Priser
Additional Media

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