You can find the source code two blogs down with instructions to compile it into your current version of Rakarrack. I keep it up to date with my current work.
Here is a zip archive of Audio samples recorded from a jam session playing with my rakarrack and the analog phaser model.
The zip file is a tar.gz, and the audio files are .ogg format. If either is a problem, leave a comment and I may feel inclined to submit a regular .zip full of .mp3 format files. I figure if you aren't using Linux, then Rakarrack is probably of little interest for you.
Recording setup is:
Vox V810 overdrive Pedal (modified) --> Peavey Duel 212 --> EFX loop send--> Behringer UCA202 in (left)--> Rakarrack --> Ardour --UCA202 out --> EFX loop return --> Power Amp.
Any distortion sounds come from either the Vox OD pedal or the tube preamp, or a combination of the two. Sorry I can't claim the sweet chunky sounds are coming from rakarrack.
My todo list is now down to this:
1) Change names of hi-jacked parameters to names more appropriate to what they're controlling. For example, "Panning" actually adjusts the amount of JFET distortion level, where -64 corresponds to 0. This produces a subtle effect even at maximum (which seems reasonable, since the real Analog phaser doesn't make the signal outright fuzzy).
2) Model component mismatches. JFET's vary drastically in manufacturing process. Even hand-matched units can be different by 5%. My working hypothesis is this increases the "swirl" as this causes the bandwidth of the phase cancellation notches to become wider, even though the cancellation depth may not be as great. Particularly narrow notches are not quite as audible. This will probably provided as a slider that makes the variance between stages adjustable from perfect to abysmal.
3) Rename files to Phaser_Analog.C (and .h) and integrate as a separate selectable effect into Rakarrack.