"Here's part of a tape from a French class at Somerset (KY) High School (1970s). There was a tape lab with several stations that had reel-to-reel tape recorders, connected to a master reel-to-reel tape player. A tape from a textbook company would be played on the main machine, which would feed to the recorders where students would sit with headphones and speak into a microphone. The voice would speak the French phrase, and students would repeat after, recording their voice onto a new reel-to-reel tape, which the teacher and student could review later. Somehow my sister, Kathie, was given the tape she had recorded (which I kept all these years), so her voice is heard here."
Via Tim Stamps