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DATAMATH CALCULATOR MUSEUM

Texas Instruments 1265 distributed by Koh-I-Noor Hardtmuth

Date of introduction:	1977	Display technology:	Fluorescent
New price:		Display size:	8
Size:	5.5" x 2.8" x 1.4" 138 x 70 x 35 mm³
Weight:	4.5 ounces, 127 grams	Serial No:
Batteries:	9V	Date of manufacture:	wk 20 year 1977
AC-Adapter:	AC9180	Origin of manufacture:	Italy (RCI)
Precision:	8	Integrated circuits:	TMS1043
Memories:	1
Program steps:		Courtesy of:	Michel Zwawiak

Within the TI-1200 family we discovered in the past ten years some very interesting design variations sold either as a Texas Instruments product, as a Texas Instruments product through different sales channels, or even without the TI logo. Just recall some TI-1200's and TI-1250's:

• Texas Instruments LADY 1200, a colorful variation for the modern woman
• Texas Instruments TI-1400, a TI-1200 with a brown housing and the [+/-] key
• The odd colored Texas Instruments T-1220 custom model manufactured for True Value Hardware Stores
• The rare Texas Instruments CONCEPT I manufactured for Zayre Corporation
• The reactor 1250 sold by by the Dutch department store HEMA
• The "woody" calculators sold by Western Auto as electronic Wizard and Citation

And how does this Texas Instruments 1265 fit into the line? Thanks to our fellow calculator collector friend Michel Zwawiak in France, we know the roots of this strange product: It was sold in 1977 by Koh-I-Noor Hardtmuth, a manufacturer of pencils, pens and art supplies based in the Czech Republic and already known for the incredible Texas Instruments 30/super.

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