I’ve been building a polychain of Phattys in what I’m calling The Phatt Bastard Project
The chain is presently up to 6 voices.
You can read the details here; The Phatt Bastard Project
Excellent post! Having 3 Slim Phatty to polychain with my Little Phatty is a current dream of mine. The only problem is that I live in Brazil, and they’re rare around here.
Thank you for sharing all this knowledge with us.
Would love to hear some sound examples…
Cheers!
Thanks. The good news is that Slim Phatty’s are available from all around the world. Shipping isn’t too bad. Good luck in building your dream synth!
I’ll put some sound clips and video together soon and post on this thread.
I’ve recently resolved a nightmare where I recovered a Slim Phatty that was, for all intents and purposes, BRICKED 
You can read the details at this link
I’m hoping to get some recording of Phatt Bastard going soon. I’ve been working on some cool patches and the polyphony is excellent. I’ve also spread each voice around the stereo field through the line mixer. It REALLY enhances the sound.
Very interesting, thanks for posting this! 
Just for the sake of research efficiency, let me place the tags “unbrick” and “unbricked” here 
I have a 5 voices. Very thick sounding.
Your Phatty tower looks great!
I have a question:
I would like to build up something similar for my live rig, but more than 3 slim phattys would cause a logistic problem - too big, too heavy.
So I wonder if I could take 3 phattys and add a synth by a different brand at the end of the chain just in case I would need more than 3 voices.
Do you have experiences in doing so?
Tanx in advance!
Thanks!
The Moog Minitaur can also be polychained with the Phattys although I’ve never personally done this.
Yeah - I know. But the tone range is limited, it´s not 19" and there are no memory patches.
It´s for one of my live rigs and as I already mentioned, 6 oder 7 slim phattys would be way too big and heavy.
While I didn’t reach my goal of 8 voices in 2018 I did manage to slip a sixth Slim Phatty into Phatt Bastard 2 days before the year ended bringing the total number of voices (with the Little Phatty controller) to 7.
That’s Awesome!
Do you get any note drop-out or double-up glitching issues?
I have 3 phatty voices and it never was reliable with the round-robin note distribution.
EDIT: Just read in your link that for you this issue seemed to be related to MIDI merge - thanks, I’ll look into that for my set-up!
David
NZ
Somewhere in my quest for Phatty knowledge someone mentioned that feeding an external clock to the Phatty chain can contribute to the note-drop effect.
I have found this to be true.
It may have been me
I remember performing some tests and filtering the MIDI clock signal led to far better results.
Cheers I will look into this too.
Unfortunately I have far bigger problems though - I still seem to be having the dreaded ‘possessed’ dial issue with my two slim’s (not my LP stage II though - that’s always been solid).
I’ve been battling this for years (documented on this forum) and I thought it was fixed when I got an electrical engineer to mod the slims with new steel plates to block power supply radiation from the circuit boards. Turns out a couple of years later they’re crazy again, and one is a bit crazier than the other. I wonder if it’s something to do with the local NZ voltage inputting into the universal power supply?
Anyway, sorry to derail but it’s frustrating! Between this and the note drop out issue (which now may not be an issue), I haven’t been using the slim’s and I’m considering trying to sell them maybe.
David
NZ
Regarding the Slim Phatty possessed dial problem, I assume you are talking about dials randomly jumping around to different values. I had the same problem. I sent it back to the dealer, who sent it to Moog, who fixed it. It’s been solid since then. If you have an authorized dealer or repair shop, perhaps they can do the same.
Sorry, I don’t know what Moog did to fix the issue.
My Little Phatty does that one time out of two when I go for a gig, never at home nor at the couple of studios I go for rehearsals.
BUT! More often than not, it does it during few (dozens of) minutes, then it seems to get used to it and stays steady. Just as if it needed to warm up. I remember observing it in july, so it’s not exactly like warming up, though.
I haven’t used any Slim Phatty in any other place than home, so I cannot tell.
I think this problem is related to any sensitivity to the current indeed, or more precisely to the electric system. I remember having had the problem once with a certain stompbox plugged on the same powerchain (and the LP audio going through it) . Changing the power chain of the stompbox did the job, as far as I remember.
I ended up getting the electrical engineer to have another look at both of my Slims and he hunted down/replaced/re-soldiered various shorts or damaged components (different issues for each unit) and now I can run my units perfectly again!
Just getting some replacement timber sides made for the sticky Little Phatty St. II and I will consider the poly chain restored, which sounds weird, but I guess they’re slowly turning into vintage equipment.