Model: TI-55
Battery: BP 7
Adapter: AC9132
Year: 1979
Chip: TMC1503
Info: TI-55 same as TI-51 III, but TI-55 was sold in the US while TI-51 III was sold in Europe.
If you have the opportunity to support those who work for free, in this non-profit museum, and with the aim of opening a museum in the city of Rieti dedicated to Texas Instruments. DONATE !
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.jpg "Olivetti Valentine")
