Object Details
- distributor
- Western Auto Supply Company
- Texas Instruments
- 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
- Credit Line
- Gift of John B. Priser
- 1977
- ID Number
- 1987.0435.17
- catalog number
- 1987.0435.17
- accession number
- 1987.0435
- Object Name
- electronic calculator
- 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
- See more items in
- Medicine and Science: Computers
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_214341
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a8-a5ff-704b-e053-15f76fa0b4fa
