DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1796+ (1998 Kinpo)
|Date of introduction:||1998||Display technology:||LCD|
|New price:||Display size:||10|
|Size:|| 5.1" x 4.2" x 1.0"
130 x 106 x 26 mm3
|Weight:||3.3 ounces, 94 grams||Serial No:|
|Batteries:||LR54 (30µA)||Date of manufacture:||mth 06 year 1998|
|AC-Adapter:||Origin of manufacture:||China (G)|
|Program steps:||Courtesy of:||Joerg Woerner|
of the TI-1796+ and its sibling
TI-1795+ with 8 digits display capacity was shifted
in June 1996 from Thailand to China.
Dismantling this TI-1796+ manufactured in June 1998 by Kinpo Electronics in China reveals a clean design centered around an unknown single-chip calculator circuit in a conventional Quad Flat Pack (QFP) housing and soldered on a double-sided printed circuit board (PCB). The electronics is powered by 4 small solar cells and a LR54 (LR1130) backup battery.
Inspecting the PCB of the TI-1796+ calculator brought our attention to a small mark reading SD29A-11, most likely a reference to Type Small Desktop 2nd Design 9 Advanced and Revision 1.1 of the design (schematics and layout). We spotted a very similar PCB-Mark reading SD29-11 already with the TI-1795+ and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
The TI-1796+ was replaced in 1999 with the much more stylish TI-1796SV (SuperViewTM). Don't miss the first generation TI-1796 introduced already in 1986.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, April 9, 2020. No reprints without written permission.