The Phase 45 is only a 2-stage phaser, wheras the Phase 90 (and 100 I guess) are 4 stage phasers. The 45 is ALOT more subtle than the 90/100. That does not mean it cannot be used to effectively recreate the feel of Jerrysound though obviously. The simulated Leslie type thing in Candyman is a high speed setting. The 45 has a pretty good Leslie sim', but it is more subtle than Jerry in my mind, again.
I was just commenting on how I had an epiphany with a phase 90 and Jerry lead tone when I returned to electric after an absence (and I was a Duane Allman/Hendrix heavy handed/passion/vibrato type guy before that). It does add some "distortion" to the sound...midhump. Other than the overthetop Candyman type things I havent been able to get much that thrills me outta my 100, but I havent tried much either...still focusing on melody and phrasing I guess. I have a MOOG 6/12 stage phaser that is mindblowing at times, especially in stereo; but I havent used it for Jerry vibes really either, more of a jazzy/fusion type feel outta the box.