Bohn Omnitrex SR1 Handheld Electronic Calculator
date: label: date made
content: ca 1974
notes: label: Description
content: This somewhat hefty handheld electronic calculator is an improvement on the Bohn Instant and the Bohn Omnitrex. It has ten digit keys, a decimal point key, keys for the four arithmetic functions, an equals or total key, and a clear key. In addition, it has a memory key, a square root/reciprocal key, a square/percentage key, and a position of the clear key that clears only the entry. The on/off switch is to the left of the digit keys and the key for shifting the function of the function keys is next to the top row of function keys. Behind the keyboard is an unusually large eight-digit fluorescent display. A mark between the keyboard and the display reads: Bohn omnitrex SR1. A connection for an adapter is on the right side at the top.
label: Description
content: The back of the calculator has a compartment to hold five batteries. At present it has no batteries and no cover. It has four plastic feet. A sticker attached to the back reads: BOHN REX ROTARY (/) MODEL BOHN OMNITREX SR1 (/) VOLTAGE-7.5 VOLTS D. C. POWER: 1.5 V. A. (/) SERIAL NO. 3708649-I (SERVICE CENTERS (/) 475 S. DEAN ST. (/) ENGLEWOOD N. J. 07631 (/) MADE IN TAIWAN. The address of the second service center, also indicated on the sticker, is: 121 S. PALM ST. (/) ALHAMBRA CAL. 91801.
label: Description
content: The Bohn Duplicator Company had distributed Danish adding machines and Rex-Rotary duplicating machines. For an example of one of the adding machines, see 1995.0018.01.
label: Description
content: The date of about for the Bohn SR1 is given by Ball and Flamm, who indicate that it sold for $99.95. A January 1974 advertisement in the <I>Chicago Tribune</I> indicates that the calculator had a list price of $129.95 and was on sale for $79.88.
label: Description
content: Reference:
label: Description
content: Guy Ball and Bruce Flamm, <I>The Complete Collector's Guide to Pocket Calculators</I>, Tustin, CA: Wilson/Barnett, 1997, p. 34.
label: Description
content: <I>Chicago Tribune</I>, January 31, 1974, p. 18.
label: Location
content: Currently not on view
place: label: place made
content: Taiwan
setName: label: See more items in
content: Medicine and Science: Computers
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content: Computers & Business Machines
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content: Handheld Electronic Calculators
creditLine: label: Credit Line
content: Gift of John B. Priser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0988.154
label: catalog number
content: 1986.0988.154
label: accession number
content: 1986.0988
objectType: label: Object Name
content: electronic calculator
label: Other Terms
content: electronic calculator; Handheld
physicalDescription: label: Physical Description
content: plastic (case; screen; keys; feet material)
label: Physical Description
content: metal (circuitry material)
label: Physical Description
content: paper (sticker material)
label: Measurements
content: overall: 1 1/2 in x 4 1/8 in x 6 1/2 in; 3.81 cm x 10.4775 cm x 16.51 cm