DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1606
|Date of introduction:||1985||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 3.9" x 2.4" x 0.25"
98 x 62 x 6 mm3
|Weight:||1.0 ounces, 29 grams||Serial No:|
|Batteries:||n.a.||Date of manufacture:||mth 02 year 1985|
|AC-Adapter:||Origin of manufacture:||Taiwan (C)|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 1.3 MByte)|
TI-1606 could be called one of the smallest, thinnest and lightest "Portrait-Style"
solar powered calculator
manufactured by (or more accurate for) Texas Instruments. Compare it with the TI-1626 introduced in the
same year and the later TI CARD calculator TI-1786.
Dismantling the featured TI-1606 - a non-reversible process - manufactured in February 1985 by a non-disclosed Original Equipment Manufacturer (OEM) in Taiwan for Texas Instruments reveals a clean design centered around an unknown single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by four small solar cells and surrounded by just a few discrete components.
While the TI-1626 uses a rather unusual electrical connection between the solar cells and the PCB with a flexible PCB, sports the TI-1606 a traditional design with hand-soldered wires instead.
Inspecting the PCB of this TI-1606 calculator brought our attention to a small mark reading S25T-11, together with the leading "C" in the Date code of the calculator we assume that it was manufactured by Cal-Comp Electronics. We noticed a similar mark reading S4T-10 already with the TI-1780 introduced in 1984 and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
With the TI-1505 a sibling powered with a thin coin shaped battery was introduced in the same time frame.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.