Texas Instruments

• LCD-1980-1984

Model: TI-1706
Battery: solar
Adapter: solar
Year: 1983
Chip: Sharp LI3129
Info: 

• LCD-1980-1984

Model: TI-1706 II
Battery: 2 x solar
Adapter: 
Year: 1985
Chip:
Info: LCD  1980 - 1984

• LCD-1985-1990

Model: TI-1706 III
Battery: solar
Adapter: solar
Year: 1990
Chip: Sharp LI3135MS
Info: 

• LCD-1991-1999

Model: TI-1706 SV
Battery: LR54
Adapter: 
Year: 1999
Chip: sharp LI3154  
Info: LCD  1991 - 1999 

• LCD-1982-1987

Model: TI-1744
Battery: 2 x LR43
Adapter: 
Year: 1982
Chip: NEC uPD1831G
Info: Made in Taiwan