Yamaha PSR-50

The Yamaha PSR-50 is a portable keyboard synthesizer released in the late 1980s. It was popular among amateur and professional musicians alike, and was used by artists such as the Pet Shop Boys, Depeche Mode, and the Cure. The PSR-50 features a 61-key keyboard, a built-in sequencer, and a variety of sounds and effects. It also has a built-in rhythm machine and a selection of preset rhythms. The PSR-50 is capable of producing a wide range of sounds, from acoustic instruments to synthesized sounds. It also has a built-in arpeggiator and a selection of preset arpeggios. The PSR-50 is powered by six AA batteries or an optional AC adapter.