Texas Instruments TI-1795+

Date of introduction:  1992 Display technology:  LCD
New price:   Display size:  8
Size:  4.9" x 4.2" x 1.0"
 125 x 106 x 25 mm3
Weight:  3.0 ounces, 84 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 03 year 1994 (D)
AC-Adapter:   Origin of manufacture:  Thailand (C)
Precision:  8 Integrated circuits:  Sharp LI3154
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Is this TI-1795+ a small desktop calculator or a large handheld calculator? The type designator suggests the "Desktop Category" of the Datamath Calculator Museum, from the size it could easily a "Handheld" like the TI-508 PLUS.

Beside the smooth styling the calculator itself is very plain and looks still like the first TI-1795 introduced already in 1984.

Dismantling this TI-1795+ manufactured in March 1994 by Cal-Comp Electronics in Thailand reveals a very simple construction centered around a Sharp LI3154 single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by solar cells. We noticed this chip during our research about so-called Checkbook Calculators with the Radio Shack EC-455.

Learn more about single-chip calculator circuits used in Account Manager Calculators.

Inspecting the PCB of this TI-1795+ calculator brought our attention to a small mark reading SD9L1-10-1, most likely a reference to Type Small Desktop 9. We spotted a very similar PCB-Mark already with the Radio Shack EC-2006A and Privileg SOLAR 31 and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

Within four years the design of the TI-1795+ was changed slightly and an interesting journey around the globe began. Don't miss:

TI-1795+ Second Generation Prototype Kinpo Electronics (Taiwan), June 1994
TI-1795+ Second Generation Cal-Comp Electronics (Thailand), October 1995 and April 1998
TI-1795+ Second Generation Nam Tai Electronics (China), May 1998
TI-1795+ Second Generation Kinpo Electronics (China), August 1998

In 2000 the TI-1795+ was finally replaced with the stylish TI-1795SV (SuperViewTM).

The TI-1795+ is featured in the Texas Instruments Incorporated sales catalog CL-1233 dated 1994.


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If you have additions to the above article please email:

Joerg Woerner, May 2, 2003. No reprints without written permission.