Texas Instruments TI-1795

Date of introduction:  1985 Display technology:  LCD
New price:   Display size:  8
Size:  4.7" x 4.1" x 1.0"
 120 x 106 x 25 mm3
Weight:  3.0 ounces, 86 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 10 year 1987 (A)
AC-Adapter:   Origin of manufacture:  Taiwan (C)
Precision:  8 Integrated circuits:  Sharp LI3135MS
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
Download leaflet:   (US: 0.6M Bytes) Download manual:   (US: 2.0M Bytes)

Texas Instruments added in 1986 a small bump on the key #5 of the TI-1795 as a tactile guide to ensure that your fingers are in the home position. Everything else seems to be identical to its predecessor introduced two years earlier.

Dismantling this TI-1795 manufactured in October 1987 by Compal Electronics, an OEM (Original Equipment Manufacturer) in Taiwan, reveals a clean design centered around a Sharp LI3135MS single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by solar cells.

Inspecting the PCB of this TI-1795 calculator brought our attention to a small mark reading SD9-15, most likely a reference to Type Small Desktop 9 and Revision 1.5 of the design (schematics and layout). We spotted this PCB-Mark already with the near identical offspring Radio Shack EC-2006A. Two otherwise identical TI-1795 manufactured in June 1986 respectively January 1987 read SD9-14 while a unit from July 1985 reads SD9-13. We started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments. Meet Kmart Corporation's KMC 100B - the first born SD9 calculator with Revision 10.

This TI-1795 introduced in 1984 started a line of everlasting calculators, compare it with the TI-1795+ and the TI-1795SV

In 1988 the design of the TI-1795 was slightly changed before production was shifted to Thailand in 1991. 

The TI-1775 put similar specifications in a foldable housing while the TI-1796 added a battery backup and sports a 10 digits display.


The TI-1795 is featured in the Texas Instruments Incorporated bulletin CL-854 dated 1985.


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Joerg Woerner, March 16, 2020. No reprints without written permission.