Casio Hl-807 Handheld Electronic Calculator

Description
The case of this handheld electronic calculator is a cream-colored plastic on top and a black plastic on the bottom. The keyboard has an array of square brown plastic keys, including ten digit keys, a decimal point key, and a total key. Four keys for arithmetic functions are to the right of the digit keys. A column to the left of the digit keys has a memory key, a percentage key, a C (clear entry) key, and an AC (all clear) key.
The eight-digit yellow liquid crystal display is behind the keyboard. A tag behind it reads: CASIO HL-807 (/) ELECTRONIC CALCULATOR. A switch is on the left side. There is no power adapter or socket for one.
Text on the back of the case reads: CASIO HL-807 (/) RATING: DC 3V=0.00026W (/) use BATTERY 1.5Vx2 (/) MADE IN JAPAN (/) BM CASIO COMPUTER CO. LTD.
Two screws (one missing in this example) hold together the front and back of the case. Unscrewing them allows one to change the two AA batteries (this example has no batteries.) A sticker on the inside of the back of the case reads: 2279978. A mark on the Hitachi chip reads: HD43111A (/) 9J 43.
An advertisement for “Casio’s new HL-807 basic four function, single memory calculator” appeared in the Washington Post November 18, 1979. It is listed as having an original price of $13.95 and on sale for $10.98. Another advertisement for the calculator, from the Los Angeles Times for June 10, 1980, lists the regular price as $15.00 and a sale price of $9.99. The calculator was advertised in the Washington Post as late as September 1981, having a sale price of $8.88.
Compare 1986.0988.28.
References:
Los Angeles Times, June 10, 1980, p. B28.
Washington Post, November 18, 1979, p. A18.
Washington Post, September 3, 1981, p. A30.
Location
Currently not on view
Object Name
electronic calculator
date made
1979-1981
maker
Casio Computer Company
Physical Description
plastic (case; circuit boards; keys; display cover material)
metal (circuitry material)
paper (sticker material)
Measurements
overall: 3/4 in x 2 3/4 in x 4 1/2 in; 1.905 cm x 6.985 cm x 11.43 cm
place made
Japan
ID Number
1986.0988.027
catalog number
1986.0988.027
accession number
1986.0988
subject
Handheld Electronic Calculators
Computers & Business Machines
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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