Texas Instruments

• LCD-1982-1987

Model: math explorer
Battery: solar
Adapter: 
Year: 1988
Chip:  T6m39s Toshiba
Info:  modern LCD  1982 - 1987

• classic 1 generation

Model: SR 10 Italy
Battery: 3  x AA ni-cd
Adapter: AC9900
Year: 1973
Chip: TMS0120  
Info: TIP line -  classic first GENERATION  the logo is inside the display 

• LCD-1991-1999

Model: math explorer TI-12
Battery: solar
Adapter: 
Year: 1998
Chip:  T6m39s Toshiba
Info:  China. The Math Explorer ( TI-12) is another calculator introduced by Texas Instruments to perform fractional arithmetic for elementary school. 

• classic 1 generation

Model: SR 10 vers. 2
Battery: 3  x AA ni-cd
Adapter: AC9900
Year: 1973
Chip: TMS0120  
Info: TIP line -  classic first GENERATION  

• plc programmer

Model: PM550-301
Battery:      
Adapter: 110 volt
Year: 1974
Chip: TMS8080
Info:  PLC programmer 

• classic 1 generation

Model: SR-11
Battery: 3  x AA ni-cd
Adapter: AC9900
Year: 1974
Chip: TMS0602
Info: TIP line -  classic first GENERATION  

• jeppessen line

Model: Prostar
Battery: 2 x LR44
Adapter: 
Year: 1983
Chip:  CD4575 - CD4576
Info: JEPPESSEN  line   

• classic 1 generation

Model: SR-16
Battery: 3  x AA ni-cd
Adapter: AC9200
Year: 1975
Chip: TMC1001
Info: TIP line -  classic first GENERATION  

• basic

Model: Spirit of 76
Battery: 9 volt
Adapter: 
Year: 1972
Chip: TMC0952
Info: 

• classic 2 generation

Model: SR-16 II
Battery: 3 x AA
Adapter: AC8190
Year: 1975
Chip: TMC1016
Info: classic second GENERATION