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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 Compal Electronics in Thailand reveals a very simple construction centered around a Sharp LI3154 single-chip calculator circuit. Please compare it with the TI-7350 manufactured in China.

The LI3154 makes use of a standard flat-pack housing, a very uncommon approach mid of the 90s. Most calculators of this era use "Chip-on-Board" technology, instead. 

Within four years the design of the TI-1795+ was changed slightly. Don't miss the later TI-1795+.



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@datamath.org.

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