The elementary school I went to had an old Sony stereophonic portable tape player unit in one of the classrooms I was in that dated to the 1970s and had the large 1/4" headphone jacks and everything, they also had some Sony Stereophonic portable Cassette/CD Player units from the mid-1980s in some of the classrooms that also had the 1/4" headphone jacks on them and they still used these units at least up until I had stopped going to elementary school which was around 2001, and they may have still used them even after that, but not sure, and those units were battery powered or AC powered.
|