Texas Instruments TI-5100 II

Date of introduction:  1983 Display technology:  Fluorescent
New price:  $44.99 (SRP 1984) Display size:  10
Size:  7.5" x 5.1" x 1.65"
 190 x 129 x 42 mm3
Weight:  9.8 ounces, 277 grams Serial No:  207457
Batteries:  2*AA Date of manufacture:  mth 10 year 1983
AC-Adapter:   Origin of manufacture:  Japan
Precision:  10 Integrated circuits:  Hitachi HD38401
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 9.9 MByte)

Compared with the later "Cheapos", this TI-5100 II and its sibling TI-5200 II feels very strong and solid. It replaced the earlier TI-5112 and featured again everything you need for the daily use on your desktop. The TI-5020 looks similar but uses solar cells instead the batteries.

Please note the perfect access to the batteries between the keyboard switches and the display.

TI-5100-II_PCB.jpg (254054 Byte)Dismantling the TI-5100 II reveals a surprise: The printed circuit board (PCB) tells the manufacturer of this desktop calculator: Toshiba, Japan.

Don't miss the US-built TI-5100.

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Joerg Woerner, December 5, 2001. No reprints without written permission.