Synthesis: Those fancy 50's Sci-Fi screams

[Tensei]

I was wondering if it's possible to get an effect similar to the vintage-sounding Sci-fi scream Protricity uses at 2:05 in his Zombies Ate My Neighbors Remix (http://www.ocremix.org/remix/OCR01202/) from any of the synths in Reason. Can anyone please point me in the right way?

[GeckoYamori]

That's just a squarewave with lots of pitch modulation. What you really want is probably a theremin.

[Tensei]

so THAT's what produces those sounds, hmm I guess I'll have to go find a theremin soundfont or something then =P thanks anyway