Object Details
maker
Jefferson Electric Mfg Co.
Description
This simple calculator has a black plastic case, a flat keypad with ten digit keys, a clear key, four arithmetic function keys, three blank keys, and an on/off switch. Behind the keyboard is a six-digit red LED display. A sticker behind this reads: Jefferson. The back has a sticker with operating instructions, which is marked at the bottom: Made in U. S. A. The battery fits at the top of the back. A mark on the circuit board inside the case reads: PCB - 676.
It seems likely that Jefferson sold rather than actually manufacturing the calculator.
Location
Currently not on view
Credit Line
Gift of John B. Priser
ID Number
1986.0988.332
catalog number
1986.0988.332
accession number
1986.0988
Object Name
electronic calculator
Physical Description
plastic (case; template; keys; display cover; switch material)
gallium arsenide (diodes material)
metal (circuitry material)
coated paper (stickers material)
Measurements
overall: 7/8 in x 2 1/2 in x 4 5/8 in; 2.2225 cm x 6.35 cm x 11.7475 cm
place made
United States
See more items in
Medicine and Science: Computers
Computers & Business Machines
Handheld Electronic Calculators
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_1363804