Texas Instruments BA-35 Student Business Analayst (silver)

Date of introduction:  1985 Display technology:  LCD
New price:   Display size:  8 (5 + 2)
Size:  5.3" x 2.8" x 0.45"
 135 x 70 x 11 mm3
Weight:  2.3 ounces, 64 grams Serial No:  
Batteries:  2*LR44 Date of manufacture:  wk 34 year 1988
AC-Adapter:   Origin of manufacture:  Italy
Precision:  11 Integrated circuits:  TP0456/CD4571
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 3.7M Bytes)

BA-35_RCI3488_Back.jpg (144144 Byte)Production of the BA-35 Student Business Analyst shifted in 1985 from Taiwan to both the US and Italy. The featured BA-35 Student Business Analyst was manufactured in August 1988 in Italy, just a few month before the redesigned BA-35 Business Analyst was introduced.

View the black edition of the BA-35 Business Analyst here.

BA-35_RCI3488_PCB.jpg (284591 Byte)BA-35_RCI3488_PCB1.jpg (278038 Byte)The picture on the right gives you an idea about the internal construction of the calculator. The flexible printed circuit board (PCB) forms one half of the keys, holds the calculator chip and connects to the LCD. Even the two coin batteries are connected directly with two small PCB parts. Find a similar construction with the TI-52. The BA-35 was manufactured both in Italy and the USA, we noticed no differences between them.

BA-35_RCI3488_IC.jpg (74292 Byte)The TP0456/CD4571 calculator circuit is encapsulated in a traditional Dual-Inline Plastic package and soldered with bent pins on the PCB.

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Joerg Woerner, November 13, 2009. No reprints without written permission.