Object Details
- Tandy Corporation
- Description
- This handheld electronic calculator has a tan and brown plastic case and an array of fifteen keys, most of them square. These include ten digit keys, a decimal point key, four arithmetic function keys, a total key, a constant key and a cancel key. The on/off switch is behind the keys at the left. Text next to it reads: Radio Shack. Behind this is an eight-digit red LED display.
- At the top is a space for four AA batteries. A jack for a power adapter is on the back edge.
- The back of the calculator has four molded feet, as well as extensive operating instructions that are also molded into the plastic. The text reads in part: FOR DC OPERATION: USE 4 TYPE AA BATTERIES (/) FOR AC OPERATION USE ONLY CAT. NO. 13-854 (/) Made in Canada for (/) RADIO SHACK, A TANDY CORPORATIONCOMPANY (/) FORT WORTH, TEXAS, 76107 (/) RADIO SHACK MODEL EC-225. A tag toward the bottom reads: BASE PLATE NUMBER (/) 999035693.
- Radio Shack sold at least two calculators under the model EC-225 number. This is the first of them, made by the Canadian firm of General Instrument. Compare to the General EZ-2000 calculator. A second Radio Shack calculator with model number EC-225 is shown in the 1979 Radio Shack catalog and was introduced as new in a December 1979 Washington Post advertisement.
- Compare Victor 95 (1986.0988.247).
- References:
- Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 72, 119.
- Radio Shack, A Tandy Company, 1979 Catalog No. 302, p. 129, accessed September 22, 2014, at radioshackcatalogs.com. The price listed for the calculator—not this EC-225—is $17.95.
- [Advertisement], Washington Post, December 16, 1976, p. VA_12. This is also the second form of the EC-225.
- Location
- Currently not on view
- Credit Line
- Gift of John B. Priser
- ca 1973
- ID Number
- 1986.0988.039
- catalog number
- 1986.0988.039
- accession number
- 1986.0988
- Object Name
- electronic calculator
- Other Terms
- electronic calculator; Handheld
- Physical Description
- plastic (case; display cover; keys material)
- metal (circuitry material)
- Measurements
- overall: 1 in x 3 in x 6 in; 2.54 cm x 7.62 cm x 15.24 cm
- place made
- Canada
- See more items in
- Medicine and Science: Computers
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_334453
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746af-6dee-704b-e053-15f76fa0b4fa
