https://www.cassetterecorder-museum.com/gallery/picture.php?/327/most_visited
+++ 1942 .a. Textophon SP1/I - first audio cassette-3rd variant | Cassette recorder museum
- prima caseta audio din lume, in varianta a 3-a, care nu se deosebeste esential de prima; suportul sonor este un fir metalic, intrucat banda magnetica abia...