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fred's Dual Power Scientific Calculator

Date of introduction:  July 2014 Display technology:  LCD
New price:  fred's: $3.50 Display size:  11 characters and 10 +2
Size:  6.2" x 3.2" x 0.6"
 157 x 83 x 16 mm³
   
Weight:  3.2 ounces, 90 grams Serial No:  
Batteries:  Solar cells + LR43 Date of manufacture:  
AC-Adapter:   Origin of manufacture:  China
Precision:  16 Integrated circuits:  
Memories:  5    
Program steps:   Courtesy of:  Joseph Nichols

On December 17th, 2014 we at the Datamath Calculator Museum received a very interesting email from Joseph Nichols with an eye-catching subject line "TI-30X IIS....Attack of the Clones". Joseph was kind enough do ship us the "Dual Power Scientific Calculator" sold by fred's in Louisiana as a Christmas gift. Thanks!

At first glance the calculator looks identical to the original TI-30X IIS but there are some differences:

• Larger solar cells, positioned below the LCD screen 
• 1.5V battery instead 0f 3.0V battery 
• Slightly larger keys 
• Slightly larger housing 

Dismantling this Wannabe reveals with the prominent DS-760S logo it's true manufacturer, Ataba Co. (HK) Ltd. based in Hong Kong.

Running Mike Sebastian's Calculator Forensics reveals with 8.999999998078897 a very accurate, 16-digits result - even better than the original TI-30X IIS sporting 9.000003512065.


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

© Joerg Woerner, December 30, 2014. No reprints without written permission.