DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-611 aka EUROPA 10
Date of introduction: | 1990 | Display technology: | LCD |
New price: | Display size: | 10 | |
Size: | 4.8" x 5.9" x 1.0" 123 x 150 x 26 mm3 |
||
Weight: | 4.9 ounces, 140 grams | Serial No: | |
Batteries: | LR54 | Date of manufacture: | mth 06 year 1994 |
AC-Adapter: | Origin of manufacture: | Malaysia (I) | |
Precision: | 10 | Integrated circuits: | |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
First
of all we need to consult the dictionary: EUROPA is the German translation of
Europe. Texas Instruments introduced the EUROPA-line of products beginning of 1990 as an
independent design line for Germany.
Dismantling this
EUROPA 10 calculator manufactured in June 1994 by Inventec Corporation
in Malaysia reveals a clean design centered around an unknown Toshiba
single-chip calculator circuit soldered on a double-sided printed circuit board
(PCB) and powered by four solar cells and a small LR54 (LR1130) backup battery.
Please notice
that the clock module used with
the EUROPA 10 is powered from the calculator electronics, while it used with the
similar TI-1798 and BA-20 Profit Manager its own
small LR41 battery.
Inspecting
the PCB of this EUROPA 10 calculator brought our attention to a small mark reading
10TI611A-02A and revealing the internal TI-611 designation of the
product. We spotted similar PCB-Marks already with the TI-1798 and started compiling a list of the
PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
An identical housing was used for a Databank called simply EUROPA.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.