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Texas Instruments TI-1895 II

Date of introduction:  October 1986 Display technology:  LCD
New price:   Display size:  8
Size:  4.4" x 2.6" x 0.30"
 113 x 67 x 8 mm3
   
Weight:  1.8 ounces, 52 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 02 year 1989 (A)
AC-Adapter:   Origin of manufacture:  Taiwan (C)
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 5.3 MByte)

Main differences to the original TI-1895 introduced in 1984 are the smaller solar cells and the changes styling of the calculator.

Dismantling this TI-1895 II Metric Converter manufactured in February 1989 by Cal-Comp Electronics in Taiwan reveals a typical design of a Far East contract manufacturer centered around an unknown single-chip calculator circuit.

Production of the TI-1895 II moved soon to Thailand.

Inspecting the PCB of this TI-1895 II calculator brought our attention to a small mark reading S39A-12, we spotted this mark already with the Radio Shack EC-318 and a similar PCB-Mark reading S32B-II 1K with the TI-108. We discovered recently a TI-1895 II with the date code C-1186A from the first production run and consequently sporting a S39A-11 mark. We started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

If you are interested in really powerful metric conversion calculators, look for either the Canon FC-80 or the TI-1890.



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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, December 30, 2014. No reprints without written permission.