Texas Instruments TI-1260

Date of introduction:  1976 Display technology:  LED-stick
New price:  DM 39.00 Display size:  9
Size:  5.5" x 2.8" x 1.4"
 138 x 70 x 35 mm3
Weight:  3.9 ounces, 110 grams Serial No:  
Batteries:  9V  Date of manufacture:  wk 36 year 1976
AC-Adapter:  AC9180 Origin of manufacture:  Italy
Precision:   Integrated circuits:  TMS0954
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (DE: 1.6M Bytes)

With the LADY 1200 marketing guys attacked the first time women's hand-bag. With the colorful TI-1260 they continued in Europe this strategy.

This calculator added to the basic 4-functions of the TI-1200 a novice supermarket shopping feature:

You enter the price-per-kilogram (yes, it's an European calculator) of your goods and then the weight of it. The TI-1260 calculates the price of your goods and with the [M+] key you can sum up all items of your shopping list. The times changed, today we pay the invoice with our stack of credit cards.

TI-1260_PCB.jpg (31196 Byte)Dismantling the TI-1260 reveals a well known printed circuit board (PCB) similar to the TI-1250 but makes use of a TMS0954 single-chip calculator circuit.

Recently at the famous calculator collection of the Heinz Nixdorf Museums Forum (HNF) located in Paderborn, Germany a different coloring of the frontplate was discovered. The model of the exhibition carries a white keyplate with a blue stripe over the [+], [−], [×], [÷], and [=] keys.

The TI-1260 could be called a rare calculator, according to Texas Instruments only about 20,000 units were manufactured.

Don't miss the Sharp EL-204 calculator, changing the 6x4 layout of the keyboard into a 5x5 matrix with an additional sqr(X) function. 

The TI-1260 is featured in the Texas Instruments Deutschland GmbH leaflet ER-1976 dated 1976.

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