DATAMATH  CALCULATOR  MUSEUM

Texas Instruments TI-1500 (2nd design)

Date of introduction:  1974 Display technology:  LED-stick
New price:  $69.95 Display size:  8
Size:  5.0" x 2.6" x 1.0"
 126 x 66 x 26 mm3
   
Weight:  4.9 ounces, 139 grams Serial No:  1500117320
Batteries:  2*AA NiCd Date of manufacture:  wk 30 year 1974
AC-Adapter:  AC9140, AC9900/C Origin of manufacture:  USA
Precision:   Integrated circuits:  TMS0803
Memories:      
Program steps:   Courtesy of:  Peter Muckermann
    Download manual:   (US: 2.4 MByte)

TI-1500_2.jpg (37446 Byte)The original TI-1500 was soon replaced with this revised design. 

TI-1500_1_Disp.jpg (21957 Byte)We noticed two major changes:

The %-key found its place in the usual place instead 
   left from the 0-key. 
The expensive display made of 9 single 7-segment modules 
   borrowed from the SR-50 was replaced with a LED-stick 
   manufactured by Bowmar and known from the TI-2500B.

Within few month Texas Instruments started production of their own LED-sticks and the TI-1500 was changed again. Don't miss the 3rd design.

Texas Instruments manufactured the TI-1500 in Italy for the European market, too.

horizontal rule

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

Joerg Woerner, November 15, 2002. No reprints without written permission.