DATAMATH CALCULATOR MUSEUM
|The original TI-1500 uses
keyboard with the %-key left from
version of the
corrected this flaw and uses a more
|The third version of the
kept the layout but changed the
readability of the display.
version of the TI-1500 makes
use of 9 discrete LED-modules and a
magnifier lense glued on top of them.
version of the TI-1500 with
the Opto-stick display manufactured by
Bowmar - actually a competitor of TI.
version of the TI-1500 with a
standard LED-stick manufactured by TI
and a nice shaped bubble-lense stripe.
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© Joerg Woerner, October 5, 2002. No reprints without written permission.