Texas Instruments TI-2510

Date of introduction:  October 1973 Display technology:  LED modules + lens
New price:  $59.95 Display size:  8
Size:  5.5" x 3.0" x 1.7"
 139 x 76 x 42 mm3
Weight:  6.7 ounces, 191 grams Serial No:  2510065153
Batteries:  4*AA Alkaline  Date of manufacture:  
AC-Adapter:  AC9120 Origin of manufacture:  USA
Precision:   Integrated circuits:  TMS0119
Program steps:   Courtesy of:  Stefan Klaes
    Download manual:   (US: 1.4M Bytes)

TI-2510-Batt.jpg (26328 Byte)The Datamath TI-2510 could be easily distinguished from the other members of the Datamath family. This one is colored in a lighter beige compared to the remaining versions. 

TI-2500B-Switch.jpg (55603 Byte)Another great difference to the original TI-2500 Version 3 design is the absence of rechargeable batteries.

Dismantling both the TI-2500 Version 3 and TI-2510 reveals immediately one important difference - a switch in the battery compartment to disconnect the charging current.

TI-2510-1_PCB.jpg (73961 Byte)TI-2510-1_PCB1.jpg (84099 Byte)Exploring the TI-2510 is quite interesting, the printed circuit board (PCB) sports two mystery holes, an unknown Power Supply circuit SN27720 and an unique PCB designation 30614E.

With the introduction of the TI-2500B the original TI-2510 was updated internally and received an identical printed circuit board (PCB). Don't miss the later TI-2510.

Read more about Texas Instruments' "Calculator-on-a-Chip".

A more detailed comparison between the ten known Datamath Versions could be found here.

Datamath™ is a trademark of Texas Instruments.

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© Joerg Woerner, July 22, 2004. No reprints without written permission.