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TI 1500Model: TI-1500
Battery: 2 x AA ni-cd
Adapter: AC9140, AC9900/C
Year: 1974
Chip: TMS0803
Info: 

 

 

 

 


 

TI 1505Model: TI-1505
Battery: LR1130
Adapter: 
Year: 1985
Chip: 
Info: LCD  1985 - 1990  Made in Taiwan

 


 

TI 1600Model: TI-1600
Battery: special 1,2 ni-cd
Adapter: AC9131
Year: 1977
Chip: TMS1043
Info: 

 

 

 

 


 

TI 1606Model: TI-1606
Battery: solar
Adapter: 
Year: 1985
Chip: 
Info: 



 


 

TI 1626Model: TI-1626
Battery:  2 x AA
Adapter:     
Year: 1985
Chip: 
Info: The TI-1626 could be called one of the smallest, thinnest and lightest calculators manufactured by Texas Instruments.