Model: TI-1270 V0
Battery: 9 volt
Adapter: AC9180
Year: 1977
Chip: TMS0974 (7701) Year 77 Week 01 / ZA0355
Info: Discovery of a very early version of TI-1270 built in Rieti (RCI2177 Week 21 Year 1977), you can see the writing 1270 printed on the metal mask under the display.
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