Fidelipac
Videos
The Fidelipac, commonly known as a "NAB cartridge" or simply "cart", is a magnetic tape sound recording format, used for radio broadcasting for playback of material over the air such as radio commerci
Top view of a Fidelipac cartridge
Stereo-Pak
Videos
The Muntz Stereo-Pak, commonly known as the 4-track cartridge, is a magnetic tape sound recording cartridge technology.
Stereo-Pak player close up
Stereo-Pak player with cartridge