Texas Instruments TI-15

Date of introduction:  1977 Display technology:  LED-stick
New price:   Display size:  8 (5 + 2)
Size:  5.8" x 3.1" x 1.4"
 148 x 78 x 36 mm3
Weight:  4.0 ounces, 114 grams Serial No:  561314
Batteries:  9V Date of manufacture:  wk 45 year 1978
AC-Adapter:   Origin of manufacture:  USA
Precision:  10 Integrated circuits:  TMC0981
Logic:  AOS - 4 Pending Operations, 15 ()    
Memories:  1    
Program steps:   Courtesy of:  Peter Muckermann († April 21, 2021)

This colorful calculator sold in Europe is basically a TI-30 with some functions hidden by the keyboard plate. Inside you'll find the calculator chip of the SR-40 respecetively the TI-30 models. Even the contacts of the missing keys are on the printed circuit board.

Compare this TI-15 with another European TI-30 variant, the TI-33 and don't miss the unique Studio 29.


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Joerg Woerner, December 5, 2001. No reprints without written permission.