DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
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 |
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| 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.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.