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Additional Pictures 

 

The three different Display assemblies used with the TI-2550 and its siblings between February 1974 and October 1975.
DIS134C (top), DIS206A (middle), DIS206C (bottom).

The printed circuit board of a TI-2550 Version 1 (Display 1)
with Display assembly DIS134C and 9 LED-modules.

The printed circuit board of a TI-2550 Version 1 (Display 2)
with Display DIS206A, a Bowmar Optostic Display.

 

The printed circuit board of a TI-2550 Version 1 (Display 3)
with Display DIS206C using Chip-on-Board technology.

 

The printed circuit board of a TI-2550 Version 2 (Display 3)
with Display DIS206C using Chip-on-Board technology.

 


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

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