Texas Instruments TI-1750 (4th design)

Date of introduction:  1978 Display technology:  LCD (yellow)
New price:   Display size:  8
Size:  4.5" x 2.7" x 0.35"
 115 x 68 x 9 mm3
Weight:  2.3 ounces, 65 grams Serial No:  014178
Batteries:  2*LR44 Date of manufacture:  mth 10 year 1978
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  Sharp LI3023M
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 0.8M Bytes)

This TI-1750 looks similar to the 3rd design but uses completely different components. The Toshiba calculator chip was replaced with a Sharp type and the LC-display uses a metal frame. The different position of the display could be recognized easily due to the asymmetrical display frame.

Read more about the history of the TI-1750 here.
The tiny Sharp calculator chip instead the Toshiba chip found in the other designs. TI-1750_V4_PCB.jpg (52434 Byte)
The display frame of the 4th design is different from the other designs. TI-1750_V4_Disp.jpg (25508 Byte)

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Joerg Woerner, May 16, 2002. No reprints without written permission.