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Royal Five GT |
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Royal Five GT Display is 8 digits, green fluorescent in a single tube (note that the 3rd digit is not working on the example above). 4-function, %, memory. Main integrated circuit - Western Digital LC1552 (here date coded 7442). 6 v (4 x AA). 92 mm x 156 mm x 39 mm (3.6" x 6.2" x 1.5"). About 1974. Made in Japan for Imperial Typewriter Company Limited, Leicester, England. |
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Vintage Calculators |
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© Text & photographs copyright Nigel Tout 2000-2012 except where noted otherwise. |
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