Texas Instruments

• Later Scientific Desktop
• donated

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 

• First lcd and Slimline lcd

Model: TI-30 lcd
Battery: 2 x AA
Adapter: 
Year: 1980
Chip:  TP0320-4 or CD3202   
Info: first LCD and slimline LCD

• Majestic line
• TMC0981

Model: TI-30 LED
Battery: 9 volt or RK2
Adapter: AC9132 or AC9182
Year: 1976 Price: Lire 19.000 + 14 % iva
Chip: TMC0981           
Info: In the photo below, the test calculator used in the Rieti plant to test the TMC0981 chips. From an advertisement of the time! The most Famous. The TI-30 scientific calculator is more famous because it is the best-selling in the world (10 million units). In fact, no other calculator, at the same price, can give you the same performance at the same quality level. With the TI-30 you have the 8-digit display. The AOS (algebraic operating system) to set the expressions in the same sequence in which you write them, 15 levels of parentheses, memory, trigonometric functions, plus with the security of TI assistance even after a one year warranty!

Here's a nice display for the famous TI-30 LED. They could have inserted a small wafer into this PCB and then covered it with resin or soldered the integrated circuit, the TMC0981.

• Rare
• TSI
• TI-30
• orbit
• braille

Model: TI-30 Braillotron
Battery:  ni-cd
Adapter: yes 
Year: 1980
Chip: TMC0981  
Info:The TI-30 was introduced mid of 1976 and found soon its way to the vision impaired people. The German company Schoenherr developed already in 1975 a refreshable Braille display and introduced in 1978 this Braillotron. Since 1994 the company Schoenherr GmbH refirmed as EHG Handy Tech Elektronik GmbH and introduced in 1985 with the Galixa Speech a scientific calculator with natural voice speech output and later the Galixa Braille a scientific calculator with speech output and a 10-cell braille display. This Schoenherr Braillotron was manufactured till 1985. Another approach to solve the communication with vison impaired people could be found in talking calculators like the TSI speech+ and the Orbit TI-34.