Radio Shack EC-241 Handheld Electronic Calculator

This inexpensive handheld electronic calculator has a gray plastic case and twenty rectangular plastic keys. This includes ten digit keys, a decimal point key, four arithmetic function keys, a total key, a % key, two memory keys, and a clear entry/clear key. Above is an on/off switch and behind this an eight-digit LED display. A mark behind it reads: Radio Shack. A jack for a power adapter is on the right side.
The back of the calculator has a compartment for a nine volt battery. A sticker below this reads:
CAT. NO 65-611 (/) MODEL EC-241 (/) Radio Shack (/) A DIVISION OF TANDY CORPORATION (/) DC 9V (/) FOR 120V AC OPERATION (/) USE AC ADAPTER 65-731 (/) SERIAL No. 124917. It also reads: 8A6 (/) MADE IN TAIWAN.
Radio Shack, A Tandy Company, 1977 Catalog No. 276 , p. 152, accessed September 22, 2014, at The price listed is $4.95.
Currently not on view
Object Name
electronic calculator
date made
Tandy Corporation
Physical Description
plastic (case; keys; display cover material)
metal (circuitry material)
overall: 7/8 in x 2 3/4 in x 5 1/4 in; 2.2225 cm x 6.985 cm x 13.335 cm
place made
ID Number
catalog number
accession number
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of John B. Priser
Additional Media

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