Sinclair Cambridge Handheld Electronic Calculator
Object Details
- Sinclair Radionics Ltd.
- Description
- This handheld electronic calculator has a plastic case and eighteen rectangular plastic keys. These include ten digit keys, a decimal point key, four arithmetic function keys, a total key, a clear/clear entry key, and a constant key. To the right on the top row of keys is an on/off switch.
- Text behind the keyboard reads: sinclair (/) Cambridge. Behind this is an eight-digit purple LED display. According to the instructions, the device would actually carry out calculations on numbers ranging from 10-20 to 9.9999999 x 1079, although the display of such answers required careful manipulation.
- The back of the calculator has a compartment for four AAA batteries. A mark on the lid to this compartment reads: Sinclair (/) MADE IN ENGLAND.
- The calculator has a black hard plastic carrying case. This fits in Styrofoam packing.
- For the instructions, see 1981.0403.01.2. These are dated 1974. Compare to the Sinclair Cambridge Scientific Calculator (1987.0435.18).
- Newspaper advertisements date from 1974. By 1975, Sinclair had introduced a form of the calculator with memory.
- References:
- [Advertisement], Chicago Tribune, February 19, 1974, p. C6. Sinclair Cambridge calculator advertised as previously priced at $99.95, on sale for $59.88.
- [Advertisement], Washington Post, July 9, 1975, p. 31. A Sinclair Cambridge with memory (not this model) advertised as regularly priced at $39.95, on sale for $34.88.
- David Renwick, “The Prince of Little: Inventor Clive Sinclair Thinking Big is Thinking Small,” Washington Post, October 17, 1984, p. D1.
- Location
- Currently not on view
- Credit Line
- Gift of Cameron J. LaClair
- 1974
- ID Number
- 1981.0403.01
- catalog number
- 1981.0403.01
- accession number
- 1981.0403
- Object Name
- electronic calculator
- Other Terms
- electronic calculator; Handheld
- Physical Description
- plastic (case; keys; carrying case; display cover material)
- metal (circuitry material)
- Measurements
- carrying case: 2 cm x 5.3 cm x 12.2 m; 25/32 in x 2 3/32 in x 40 1/32 ft
- place made
- United Kingdom: England
- See more items in
- Medicine and Science: Computers
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Record ID
- nmah_334319
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746ae-f80e-704b-e053-15f76fa0b4fa
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