Custom build for my friend Jenny who plays as Gossimer. I’ll try to dig up some video because this thing sounds kind of demonic. It’s two cassette decks hacked together with a single loop running between them. You can record continuously onto the tape or simply play it back. You can also control the speed and direction of the motor with a wimpy little 555 PWM circuit I threw together (heat sink bobby pin). LM386 amps pick up radio signals REALLY well, so I spend a substantial amount of time thwarting those signals with various components strategically placed on different pins.