Texas TI-66 Programmable: Toshiba skills to rescue Texas
epocalc - Texas Instruments
TI-66 Premier
Calculators - Office of NIH History and Stetten Museum
DAVES OLD COMPUTERS - Calculators and Slide Rules
MyCalcDB : Calculator Texas Instruments TI-66 PROGRAMMABLE aka TI-66
TI Calculators
3,1416.DAMICALC: TI-66 PROGRAMMABLE
Virtual Museum of Calculators