Texas Instruments

• TI 58 / 59 series

Model: TI-59 WG&L Tax Planner
Battery: BP1 A
Adapter: AC9131 
Year: 1981
Chip:  TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047         
Info: The tax planner application was developed in 1982 by Warren, Gorham & Lamont, Valhalla NY (WG&L) and programmed by Texas Instruments into a Solid State Software Module. Please notice the © 1983, 1984 date of the module. These modules were probably changed every year due to updates in the tax calculation process and WG&L introduced in 1985 with the incotax calculator a more flexible approach.

• slanted LCD

Model: TI-60
Battery: 2 x LR44
Adapter: 
Year: 1987
Chip:  CD4815-CD4614
Info:  slanted LCD  generation

• galaxy line

Model: TI-65
Battery: 2 x LR44
Adapter: 
Year: 1988
Chip: CD4805 , CD4806               
Info:The TI-65 Technical Analyst is a quite interesting calculator within the Galaxy-line.

• galaxy line

Model: TI-66
Battery: 2 x LR44
Adapter: 
Year: 1984
Chip: Toshiba T6875, TC5514A               
Info: GALAXY line

• LCD-1985-1990

Model: TI-68
Battery:  CR2032
Adapter: 
Year: 1990
Chip: CPU: Toshiba T9948A   
Info: Taiwan