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Additional Pictures 

 

The original TI-1500 uses an odd 
keyboard with the %-key left from
the 0-key.

The second version of the TI-1500
corrected this flaw and uses a more
convenient layout.

The third version of the TI-1500
kept the layout but changed the
readability of the display.

The first version of the TI-1500 makes 
use of 9 discrete LED-modules and a
magnifier lense glued on top of them.

The second version of the TI-1500 with 
the Opto-stick display manufactured by
Bowmar - actually a competitor of TI.

The final version of the TI-1500 with a 
standard LED-stick manufactured by TI
and a nice shaped bubble-lense stripe.


horizontal rule

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

Joerg Woerner, October 5, 2002. No reprints without written permission.