Fisher SC-300

Fisher also made a very unusual unit called the SK-300, a cassette deck with detachable speakers and a removable synthesizer keyboard! You could adjust all aspects of your synth sound--pitch, tone, and length of notes, you could change the sound so it can be almost any instrument as well. You can also use the onboard beats to provide a backdrop while you play the keyboard overtop and record the whole arrangement using the cassette deck! Other companies also made keyboard synthesizers as well, not surprisingly, Casio made the KX-101, and Sharp made the GF-990Image 10.5) with a double deck and a pop out “music processor.”

Audio track for the SC-300