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Western Auto Citation Handheld Electronic Calculator

Western Auto Citation Handheld Electronic Calculator

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This is one of a series of handheld electronic calculators manufactured by Texas Instruments and distributed by Western Auto. It has a tan plastic case and an array of twenty-four rectangular tan keys. In addition to ten digit keys and four arithmetic function keys, there are clear entry/clear, decimal point, total, STO, RCL, pi, inverse, square, square root, and change sign keys. Behind these is an eight-digit LED display. A mark between the display and the keyboard reads: W (/) A Citation. An on/off switch is on the left side and a jacket for a battery adapter on the top edge.
The back has a compartment for a battery toward the bottom. A mark below this reads: 1577 LTA. A mark in the compartment reads: TEXAS INSTRUMENTS (/) INCORPORATED (/) PAT. PEND. A mark behind the compartment reads in part: US PAT 3819921 AND OTHER PATS PENDING (/) WESTERN AUTO (/) 66-4988-3 (/) Serial No. (/) WA 0027751. Further text reads in part: Model AC 9180 Adapter available from your dealer for (/) operation on household line voltage (/) ASSEMBLED IN USA.
A black plastic sleeve almost holds the calculator. A mark on the front of it reads: Sears.
U.S. Patent No. 3819921 was granted to J. Kilby, J. Merryman, and J. H. Van Tassel on January 25, 1974, and assigned to Texas Instruments.
Compare to 1986.0988.191.
Currently not on view
Object Name
electronic calculator
date made
Western Auto Supply Company
Texas Instruments
place made
United States
Physical Description
plastic (case; keys; carrying case material)
metal (circuitry material)
overall: 1 1/4 in x 2 1/2 in x 5 1/2 in; 3.175 cm x 6.35 cm x 13.97 cm
ID Number
catalog number
accession number
Credit Line
Gift of John B. Priser
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History
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