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Additional Pictures 

 

The printed circuit board of a TI-2550
prototype with the 9 LED-modules
known from the TI-2500 V3.

First edition of the printed circuit
board used in the TI-2550. 
Please notice the flat display module.

Same PCB-Assembly but totally 
different LED-display with
magnification lenses.


horizontal rule

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

© Joerg Woerner, July 5, 2002. No reprints without written permission.