DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The PCB (side A) of the
TI-2500 V1: TMS0119 Calculator Chip 2 + 2 Display Drivers 2 LED Modules
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The bottom shell of the TI-2500 V1. |
The PCB (side A) of the TI-2500
V2: TMS0119 Calculator Chip 2 + 2 Display Drivers 2 LED Modules (ID: 2500 378664, USA) |
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The PCB (side A) of the TI-2500
V3. |
The PCB (side B) of the TI-2500
V3: TMS0119 Calculator Chip 2 + 2 Display Drivers 9 LED Modules (ID: 2500 024221, USA |
The PCB (side A) of an
early TI-2510: PCB Designation 30614E |
The PCB (side B) of
an early TI-2510: TMS0119 Calculator Chip SN27720 Power Supply 2 + 2 Display Drivers 9 LED Modules (ID: 2510 065153, USA |
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The PCB (side
B) of a rare TI-2500B prototype testing the Bowmar Opto-stick display in a TI-2500 V3. (ID: none, wk 42 year 1973) |
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The PCB (side B) of the TI-2500B: TMS0119 Calculator Chip 2 + 2 Display Drivers Bowmar Opto-stick 9 LED Modules (ID: 2500B487035, USA) |
The PCB (side A) of the TI-2500 II: |
The PCB (side B) of the TI-2500
II: TMS0803 Calculator Chip 1 Display Driver 1 LED stick (ID: 2500-II-276954, wk 33 year 1975) |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 29, 2009. No reprints without written permission.