Texas Instruments TI‑1766


Brand: Texas Instruments
Model: TI-1766
Type: Calculator
Picture: TI-1766
Batteries: Solar cell
Lifetime: Introduced: 1981
Terminated: unknown
Notes: This is Texas Intruments' first solar cell powered four-function hand-held calculator. The solar cell is buffered using a capacitor I reckon, because the calculator switched itself on whilst being scanned, as can be seen on the picture below.