Smithsonian museums continue to be closed to support the effort to contain the spread of COVID-19. Read a message from our director, and check our website and social media for updates.

Radio Shack EC-220 Handheld Electronic Calculator

Radio Shack EC-220 Handheld Electronic Calculator

<< >>
Usage conditions apply
Downloads
Description
This relatively inexpensive handheld electronic calculator has an array of eighteen rounded rectangular keys, labeled on the keyboard. These include ten digit keys, a decimal point key, a clear entry/clear key, four arithmetic function keys, a % key, and a total key. A mark next to the top two keys reads: RS. The eight-digit red LED display is behind the keyboard. A mark behind it reads: Radio Shack. A jack for a power supply is on the back edge. The on/off switch is on the left side.
The back of the calculator has a compartment for a nine-volt battery. A sticker on the inside of this compartment reads: 20313D30-02. The calculator has four rubber discs that serve as feet. A sticker on the back reads in part: EC-220 Calculator (/) Catalog No. 65-604. Further text reads: RADIO SHACK A TANDY CORPORATION COMPANY (/) FORT WORTH, TEXAS 76107. Further text reads: Assembled in Mexico. Another mark reads: Ser. No. (/) 267484.
Compare Rockwell 8R (1986.0988.012).
Reference:
Radio Shack, A Tandy Company, 1976 Electronics Catalog , p. 116, accessed September 22, 2014, at.radioshackcatalogs.com. Calculator has a list price of $16.95.
Location
Currently not on view
Object Name
electronic calculator
date made
1976
maker
Tandy Corporation
place made
Mexico
Physical Description
plastic (case; keys; display cover material)
rubber (feet material)
metal (circuitry material)
paper (sticker material)
Measurements
overall: 7/8 in x 2 3/4 in x 5 7/8 in; 2.2225 cm x 6.985 cm x 14.9225 cm
ID Number
1986.0988.038
catalog number
1986.0988.038
accession number
1986.0988
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
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Note: Comment submission on our collection pages is temporarily unavailable. Please check back soon!

If you have a question or require a personal response, please visit our FAQ or contact page.