Texas Instruments BA-20

Date of introduction:  1986 Display technology:  LCD
New price:   Display size:  10
Size:  4.7" x 5.0" x 0.80"
 120 x 128 x 20 mm3
Weight:  3.9 ounces, 110 grams Serial No:  
Batteries:  LR41 + LR1130 (30A) Date of manufacture:  mth 02 year 1989
AC-Adapter:   Origin of manufacture:  Taiwan (I)
Precision:  10 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Larry Corrado
Download leaflet:   (US: 1.1 MByte)    

Texas Instruments introduced in the United States with the BA-20 a very useful calculator. Beside the basic calculator functions 6 additional keys enable the COST, SELL, MARGIN calculations. You enter either two of the variables and get instantly the result of the remaining value. The sibblings TI-1798 and TI-1796 introduced in the same timeframe lacked the financial calculation and other features.

BA-20_2_PCB.jpg (117344 Byte)A small clock module with its own battery gives additional functionality to the Profit Manager.

This first generation BA-20 Profit Manager introduced in 1986 makes use of a small sliding switch to select between the power sources. The second generation of the BA-20 replaced the switch with smart electronics.

In Europe a very similar calculator was sold as TI-620.

Don't miss the BA-45 Micro Business Manager and the rare TI-5310 Business Manager.

The BA-20 Profit Manager is featured in the Texas Instruments Incorporated bulletin CL-885 dated 1986.


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Joerg Woerner, December 25, 2001. No reprints without written permission.