No. 01 of 8 · Solar-Powered Gadgets
Solar calculator
Calculators powered by built-in solar cells
- Type
- Subclass of: calculator · Source · 2026-10-20
- Developer
- Unknown
- Introduction year
- Unknown
- Standard
- Unknown
- Source
- https://commons.wikimedia.org/wiki/File:Vintage_Teal_Photon_Solar_Powered_Electronic_Pocket_Calculator,_LCD_With_Yellow_Filter,_One_Of_The_First_Solar_Powered_Calculators,_Made_In_Japan,_Circa_1978_(15083726059).jpg
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–Win rate
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