The Tefifon, sold in Germany during the middle of the last century, was a hi-fi audio player of cartridges containing plastic tape etched with grooves like a record.
(Techmoan)
More details in Wikipedia's Tefifon entry.
The Tefifon, sold in Germany during the middle of the last century, was a hi-fi audio player of cartridges containing plastic tape etched with grooves like a record.
(Techmoan)
More details in Wikipedia's Tefifon entry.