Ever thought of a portable record player? A LP player that you could bring with you and play your records on the go?
Well Sony actually made a portable record player, in 1983, named the PS-F9. It used batteries and was played through stereo headphones and therefore it became a part of the Walkman family.
However it was insanely sensitive to shock and made it quite unusable as a portable devices.It included a tone arm and a vertical mounting making it very steady when it stood. It included two headphone outputs and the ability to connect an outside amplifier or tape recorder.