DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The TI-2550 II sports two
sliding switches.
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The later TI-2550 III misses one
of the switches.
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| The printed circit board (PCB) of the
TI-2550 II uses the TMS1071 single-chip calculator circuit and a discrete power supply.
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The later TI-2550 III with the
cheaper TMS1043 driving the Vacuum Fluorescent Display directly and an additional DC/DC converter running from 1.2 Volt.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 26, 2003. No reprints without written permission.
