Sinclair Oxford
PP3 battery | |
Weight | 138 grams (Oxford 300 excluding batteries)[2] |
---|---|
Dimensions | 73 by 155 by 34 millimetres (2.9 in × 6.1 in × 1.3 in) |
Sinclair Oxford was a range of low-cost scientific calculators manufactured and sold by Sinclair Radionics in England from 1975 until 1976.
History
In November 1974,
The first model was the Oxford 100, launched in Spring 1975 for £12.95 (all prices exclude
Models
All the Oxford models were similar in appearance; the 150 was introduced in 1975 introducing the ability to calculate percentages and square roots.[3][5] The Oxford 200 included memory and sold for £19.95.[3] The Oxford 300 was a scientific model with a limited number of functions (such as sin, cos, tan), which sold for £29.95, much lower than the competition.[3][6] The last two models, the Oxford Scientific (1976) and Oxford Universal were the most advanced of the range.[3]
The high power consumption of the calculators, which drew 40 mA while in operation, four times the recommended limit of the batteries, meant a short battery life. Computer Digest recommended using a much larger
References
- ^ "Oxford". Vintage Sinclair. Retrieved 8 December 2013.
- ^ "Sinclair Oxford 300 (Type II)". vintage-technology.info. Retrieved 8 December 2013.
- ^ a b c d e f g h i "Sinclair Oxford 1975-76". Planet Sinclair. Retrieved 8 December 2013.
- ^ a b "Gillette GPA / Sinclair Oxford 100". vintagecalculators.com. Retrieved 8 December 2013.
- ^ "Sinclair Oxford 150". vintagecalculators.com. Retrieved 8 December 2013.
- ^ "Sinclair Oxford Scientific Calculator". tvfilmprops.co.uk. Retrieved 8 December 2013.