Boss KM-60 Mixer Chorus It will go into self-oscillation

It will go into self-oscillation very swiftly on certain settings if required (this can be adjusted via the internal trimpot for more subtle or extreme effects

even when in good order as the heads are 45 plus years old (and the early valve units were never exactly crystal clear when new)

Switchable voltage 115/230v

Pitch Shifter/Delay RPS-10

it still has many fans due in part because of its simple useablility and the idiosyncratic manual splicing control permitting the start and end points to be moved and even reversed in real time

Boss KM-60 Mixer Chorus It will go into self-oscillationSuperb, clean example of the Boss beast. Serviced. So good.