I volunteer at a museum that shows vintage communications gear. about 6 months ago, someone came in with a donation, a Tefifon player. I must admit that I never even heard of one of these before. It is a linear record player. It has an endless strip of plastic in a cartridge, like an 8-track player, but the surface of the strip has phonograph grooves and the music is played with a conventional cartridge. With a little work, we got it to play.
Mark.

