Texas Instruments

• Overhead

Model: TI-30 XS overhead
Battery: 
Adapter: 
Year: 2007
Chip:  made in China
Info: The California based company Stokes Publishing Company, Inc. distributes under the label "The Educator®"
calculators optimized for teaching purposes. William T. Stokes filed already July 30, 1991 the US Patent Application U.S. Pat. No. 5,035,502
 with the title "Transparent calculator for overhead projection".

• LCD-2000-2017

Model: TI-30 xs
Battery: solar , CR2032
Adapter: 
Year: 2007
Chip:
Info: modern LCD  2000 - 2017

• Desktop line

Model: TI-3000
Battery:                
Adapter:  110 volt 
Year: 1972
Chip: TMS0109
Info:  DESKTOP line

• LCD-1985-1990

Model: TI-308 elle
Battery: LR1130              
Adapter:   
Year: 1988
Chip: 
Info:

• LCD-1985-1990

Model: TI-309 Nuance
Battery: Solar               
Adapter:   
Year: 1989
Chip: 

Info: The box states: An elegant hinged case calculator designed for women. A foldable compact protective case which fits easily into the purse or handbag.

The TI-309 Nuance was available in two colors, soft beige and purple.