Teal LC811 Handheld Electronic Calculator

Teal LC811 Handheld Electronic Calculator

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This handheld electronic calculator has a metal case with plastic trim and an array of twenty-three rectangular plastic keys with rounded corners. These include ten digit keys, a decimal point key, a change sign key, a total key, four arithmetic function keys, a percentage key, a clear key, a clear entry key, and three memory keys. To the left in the top row of keys is an on/off switch. Behind this is an eight-digit liquid crystal display. Text above this reads: TEAL LC811.
The back edge of the calculator has the cover for a compartment that would hold two silver oxide batteries.
A sticker on the back of the calculator reads in part: TEAL LC811 (/) ELECTRONIC CALCULATOR. It also reads in part: SERIAL NO. 153744 (/) TEAL INDUSTRIES, INC. TORRANCE, CALIF. 90502 (/) MADE IN JAPAN.
The calculator has a black plastic sleeve that serves as a carrying case, and a leaflet with instructions.
TEAL calculators were made in Japan by Tokyo Electronic Application Laboratory Ltd.
[Advertisement], Washington Post, July 4, 1977, p. A8. Teal LC811 regularly costs $24.95, on sale for $19.95.
Teal Industries, Inc., Operating Instructions TEAL LC811 Super Thin Electronic Calculator, Torrance, CA (no date).
In 1978 Teal would introduce its Photon solar calculator, which had not only a liquid crystal display but was solar powered. See [Advertisement], Popular Science, vol. 213, #2, August 1978, p. 171.
Currently not on view
Object Name
electronic calculator
date made
ca 1977
Teal Industries
Tokyo Electronic Application Laboratory Ltd.
place made
Physical Description
metal (case material)
plastic (carrying case; keys; battery compartment material)
paper (instructions material)
overall: 1/2 in x 2 3/4 in x 4 1/2 in; 1.27 cm x 6.985 cm x 11.43 cm
ID Number
accession number
catalog 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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