Try this:
Oscillators
– Osc 1: Medium Pulse Wave, Unison with several voices, but mild Detune, and spread out a bit
– Osc 2: Same as Osc 1, but pitched up 1 octave, and turn the volume up so these higher notes ring out more than the lower ones
– Noise: White. Pitch it up or High pass it a bit if you can, so it’s not so bottom heavy.
Filter 1: Formant filter. This will create the vocal shape. Experiment with the Cutoff, maybe the Res as well, until you get the sound you’re looking for
Amp Envelope: Medium Attack to swell in, and a long release
Distortion: A bit of tube distortion to make it a little dirty
Filter 2: 24 dB Low Pass. Take the Cutoff down to round off the top, but not too far. Boost the Res a lot to make that cutoff peak out and almost self-oscillate
Reverb: Hall, and pretty wet, like 50/50 Mix.