Texas Instruments

• basic
• true value
• TMS0972NL

Model: TI-1225
Battery: 9 volt
Adapter: AC9180
Year: 1976
Chip: TMS0972
Info: custom model manufactured for True Value Harware Store

• basic
• TMS0972NL

Model: TI-1250
Battery: 9 volt
Adapter: AC9180
Year: 1976
Chip: TMC0952
Info: 

• basic

Model: TI-1260
Battery: 9 volt
Adapter: AC9180
Year: 1976
Chip: TMC0954
Info: 

• basic

Model: TI-1265
Battery: 9 volt
Adapter: AC9180
Year: 1977
Chip: TMS1043
Info: 

• basic

Model: TI-1270
Battery: 9 volt
Adapter: 
Year: 1976
Chip: TMC0974
Info: