Texas Instruments TI-1766 II (3rd design)

Date of introduction:  1988 Display technology:  LCD
New price:   Display size:  8
Size:  4.6" x 2.5" x 0.35"
 117 x 65 x 8 mm3
Weight:  1.8 ounces, 52 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 08 year 1990
AC-Adapter:   Origin of manufacture:  Malaysia (I)
Precision:  8 Integrated circuits:  Toshiba T9731BU
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

This TI-1766 II introduced in 1988 and replacing the short-lived second design of the TI-1706 II looks almost identical to the original TI-1766 II introduced in 1986. A closer look reveals a great surprise: The [AC] key was replaced with a [+/-] key.

This third design of the TI-1766 II was manufactured both in Taiwan and Malaysia, we assume that production was shifted around 1990 based on the © information located on the rear of the respective sales boxes.

Dismantling this TI-1766 II manufactured in September 1990 by Inventec Corporation in Malaysia reveals a clean design centered around a Toshiba T9731BU single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by four small solar cell.

The third generation of the TI-1766 and TI-1706 - named TI-1766 III and TI-1706 III - wiped out the exclusive flair of the TI-1766 and used similar housings.

The TI-1766+ introduced in 1996 brought finally the value proposition of the TI-1766 series back again.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, May 15, 2002. No reprints without written permission.