Western Auto Citation Handheld Electronic Calculator

Description
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.
Location
Currently not on view
Object Name
electronic calculator
date made
1977
distributor
Western Auto Supply Company
maker
Texas Instruments
Physical Description
plastic (case; keys; carrying case material)
metal (circuitry material)
Measurements
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
place made
United States
ID Number
1987.0435.17
catalog number
1987.0435.17
accession number
1987.0435
subject
Computers & Business Machines
Handheld Electronic Calculators
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of John B. Priser
Additional Media

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