sortof. the sherman doesn't have 'oscillators' but during self oscillation the resonance peak becomes a sine whose cutoff freq tracks the pitch of the input source. there are 2 filters so that's 2 sines. they can be offset from each other w a rotary switch than sets the second filter cutoff freq at specific intervals relative to the first. when resonance is cranked and you're in tracking mode, there's rarely a trace of the original source, so yes, you can ditch the original signal, not much of a choice really. btw, only the sherman mk2 has this feature. the original sherman mk1 does not have tracking. also, there's a switch for tracking -1 octave, -1quint, +1octave, +1quint, or normal. mind you, the resulting sound is pretty aggressive and behavior is unwieldy, not at all like a typical minimoog tone, but fun as hell.