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Tag: TI Concept

Texas Instruments Concept II
Concept II / Texas Instruments

Texas Instruments Concept II

December 15, 2011April 1, 20223

This is the TI Concept II calculator. It was sold by a discount department store called Zayre’s in the mid 70’s and is basically a re-badged TI-1250.  In fact, it’s exactly the same except for the colors on the faceplate.  It was introduced by Zayre in 1976 and retailed for …

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