The Beatles' "Blue Jay Way"

I'm currently listening to the Beatles' Magical Mystery Tour.  On "Blue Jay Way," George Harrison's vocals (and some of the backing vocals, too) are kind of wobbly, which I'd never noticed before.  I think they did the same thing they did with "Tomorrow Never Knows" from Revolver about a year earlier and put the vocals through a Leslie speaker.  "Blue Jay Way" also features organ, which was frequently (I might even say, "usually") put through a Leslie speaker, so it doesn't seem too unlikely that they'd use the same thing for the vocals.