Unitrex 95SL Handheld Electronic Calculator

Description:

This handheld electronic calculator has a tan plastic case and an array of twenty-four rectangular indented plastic keys. These include ten digit keys, a decimal point key (that can also serve as a memory exchange key), a percentage key, a total key, four arithmetic function keys (one of which can also serve as a squaring key and another as an inverse key), a square root key, four memory keys, a clear entry/clear key, and a function/clear function key.

Behind the keys is an eight-digit red LED display. A worn mark above it once read: UNITREX. The on/off key is on the right side and the power jack is on the left side.

A sticker on the inside of the battery compartment on the back reads: 9 VOLT BATTERY. The compartment cover is missing. Text at the bottom of the case reads: HONG KONG.

The model number is deduced by comparing this object to objects on websites and in printed sources.

References:

Guy Ball and Bruce Flamm, The Complete Collector’s Guide to Pocket Calculators, Tustin, CA: Wilson/Barnett, 1997, p. 171.

[Advertisement], Progress Bulletin [Pomona, California], March 28, 1977, p. 26. Calculator selling for $7.99.

Vintagecalculators.com website.

Date Made: ca 1977

Maker: Eiko Business Machine Company

Location: Currently not on view

Place Made: China: Hong Kong

See more items in: Medicine and Science: Computers, Computers & Business Machines, Handheld Electronic Calculators

Exhibition:

Exhibition Location:

Credit Line: Gift of John B. Priser

Data Source: National Museum of American History

Id Number: 1986.0988.016Catalog Number: 1986.0988.016Accession Number: 1986.0988

Object Name: electronic calculatorOther Terms: electronic calculator; Handheld

Physical Description: plastic (case; keys material)metal (circuitry material)paper (sticker material)Measurements: overall: 7/8 in x 2 1/2 in x 5 1/8 in; 2.2225 cm x 6.35 cm x 13.0175 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a1-35c7-704b-e053-15f76fa0b4fa

Record Id: nmah_334430

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