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Texas Instruments TI-1895

Date of introduction:  1984 Display technology:  LCD
New price:   Display size:  8
Size:  4.4" x 2.6" x 0.30"
 112 x 65 x 7 mm3
   
Weight:  1.7 ounces, 49 grams Serial No:  178511
Batteries:  n.a. Date of manufacture:  mth 04 year 1986
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  Toshiba T6856S
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
Download leaflet:   (US: 0.7 MByte) Download manual:   (US, FR: 3.6 MByte)

The TI-1895 Metric Converter introduced in 1984 added solar cells to the TI-1889 launched already in 1982 and matches perfectly the design of the TI-1766.

Dismantling this TI-1895 Metric Converter manufactured in April 1986 by Toshiba Corporation in Japan reveals a very clean design centered around a Toshiba T6856S single-chip calculator circuit soldered on a single-sided printed circuit board (PCB) and powered by five large solar cells.

Inspecting the PCB of this TI-1895 calculator brought our attention to a small mark reading TI-1895 21, obviously a reference to TI-1895 and revision 21 (layout) of the PCB. 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.

The TI-1895 was replaced in 1986 with the stylish TI-1895 II.



The TI-1895 is featured in the Texas Instruments Incorporated bulletin CL-869 dated 1985.

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

Joerg Woerner, December 5, 2001. No reprints without written permission.