DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments BA II Plus (2018)
| Date of introduction: | 2018 | Display technology: | LCD dot matrix |
| New price: | $45.00 (SRP 2020) | Display size: | 3 alpha + 10 (7+2) |
| Size: | 6.0" x 3.0" x 0.6" 153 x 76 x 15 mm³ |
||
| Weight: | 2.9 ounces, 81 grams | Serial No: | |
| Batteries: | CR2032 (60µA) | Date of manufacture: | mth 03 year 2019 (B) |
| AC-Adapter: | Origin of manufacture: | Philippines (L) | |
| Precision: | 13 | Integrated circuits: | |
| Memories: | 10 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Just
small incremental changes of the BA II Plus (2015).
Disassembling
the featured BA II PLUS with Date code L-0319B
and manufactured in March 2019 by Kinpo Electronics, Inc.
in the Philippines reveals a well known internal construction centered around an
unknown single-chip calculator circuit and powered by a CR2032 battery.
Inspecting
the printed circuit board (PCB) of this BA II Plus calculator brought our attention to
a small mark reading
BF16-11-1, we noticed similar marks already with other
Slide Rule calculators manufactured by Kinpo
Electronics and started compiling a list of the
PCB-Marks on calculators
manufactured by OEMs for Texas Instruments.
You might have heard about faked smart phones and game consoles offered at the Huaqiangbei Ghost Market (Fake Market) in Shenzhen, China's
largest counterfeit goods night market. Please be aware of faked BA II Plus
calculators sold on eBay and other markets!
Here at the Datamath Calculator Museum, we observed an uptick of
"too good to be true" offers of the BA II Plus and they had two things in
common:
|
• 2015-style of calculator Packaging • Original UPC barcode label taped over |
We decided to acquire some of these suspicious calculators (around $15 to $20 per unit instead the usual "street price" of $30 to $35) and share our findings how to authenticate a BA II Plus with the Qusure BA II Plus.
Don't miss
the Fiamo ABA10 Advanced Financial Calculator, a street-legal alternative of the BA II
Plus.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 1, 2014. No reprints without written permission.