![Obsolete Sony on X: "Sony's 1987 WM-F107 Solar Walkman was the first cassette player powered by solar panels. It was compact, had metal tape compatibility, and a waterproof case. Sony didn't produce Obsolete Sony on X: "Sony's 1987 WM-F107 Solar Walkman was the first cassette player powered by solar panels. It was compact, had metal tape compatibility, and a waterproof case. Sony didn't produce](https://pbs.twimg.com/media/FxwRA1bXsAEVjE3.jpg)
Obsolete Sony on X: "Sony's 1987 WM-F107 Solar Walkman was the first cassette player powered by solar panels. It was compact, had metal tape compatibility, and a waterproof case. Sony didn't produce
![Another Sunday hi-fi Illustration day, this time with a surprising piece I found online from a time when ecological machines were not a thing: the Sony WM-F107! This is a full-fledged solar Another Sunday hi-fi Illustration day, this time with a surprising piece I found online from a time when ecological machines were not a thing: the Sony WM-F107! This is a full-fledged solar](https://i.redd.it/cdef8lpn10181.jpg)
Another Sunday hi-fi Illustration day, this time with a surprising piece I found online from a time when ecological machines were not a thing: the Sony WM-F107! This is a full-fledged solar
![Buy Pre-Owned Sony WM-F107 Walkman Solar Radio TV Cassette Player 'Yellow' - 3990 100000615WSRT YELL | GOAT Buy Pre-Owned Sony WM-F107 Walkman Solar Radio TV Cassette Player 'Yellow' - 3990 100000615WSRT YELL | GOAT](https://image.goat.com/transform/v1/attachments/product_template_additional_pictures/images/063/602/778/original/853485_01.jpg.jpeg?action=crop&width=750)
Buy Pre-Owned Sony WM-F107 Walkman Solar Radio TV Cassette Player 'Yellow' - 3990 100000615WSRT YELL | GOAT
![Sony WM-F107 Solar Walkman AM/FM radio cassette tape Player SUPER RARE! – St. John's Institute (Hua Ming) Sony WM-F107 Solar Walkman AM/FM radio cassette tape Player SUPER RARE! – St. John's Institute (Hua Ming)](https://i.ebayimg.com/images/g/Q~wAAOSwZDpk4Pqr/s-l1600.jpg)