Texas Instruments

• LCD-1980-1984

Model: TI-21
Battery: 2 x AA
Adapter: 
Year: 1982
Chip:     
Info: Taiwan

• first lcd and slimline lcd

Model: TI-25
Battery: 2 x LR44
Adapter: 
Year: 1978
Chip:  T3763  Toshiba
Info:  first LCD and slimline LCD 

• majestic line
• tmc0981
• ti-30

Model: TI-30 LED 1 versione ( metal plate )
Battery: 9 volt or RK2
Adapter: AC9132 or AC9182
Year: 1976 Price: Lire 19.000 + 14 % iva
Chip: TMC0981           
Info:This Italian-made TI-30 (4376 RCI, November 1976) looks different from the original TI-30. Instead of the usually printed TI logo and the TEXAS INSTRUMENTS nameplate, this one uses only a sticker, a metal plate with a black background and gold-colored writing, like other calculators made in Europe, TI-45, TI-57, Privileg SR-35NC, but also a calculator sold by Radio Shack in the United States, the Radio Shack EC-4000. Later, during production, the metal plate was replaced to adapt it to the US design. We are particularly fond of this one, as we have been looking for one for many years and finally found two in one week (2023).

• later SCIENTIFIC desktop

Model: TI-30 D
Battery: 2 x AA
Adapter: 
Year: 1982
Chip:  TP0456 (CD4565)
Info:  I must thank the family of Massimo Di Pietro, former Texas Instruments employee of the Cittaducale (Rieti) office, in particular his daughter Francesca and her husband Antonio who donated many databooks, calculators and personal paper material of their father Massimo to our ODV. A thousand thanks

• first lcd and slimline lcd

Model: TI-30 II
Battery: 2 x LR44
Adapter: 
Year: 1983
Chip:  CD4565  
Info:  first LCD and slimline LCD