Just realised what the SWEEP IN on the lower row is for and I thought it would be great to control with my exp pedal. But it didn´t work, and then I read that it´s supposed to be fed by a mono signal. Is that what doesn´t make work? I would just love to have the LFO move half the dips and then control the others with my foot, and not “just” with another LFO. Could this be done?
Are you using an EP2 expression pedal? It was my understanding that the control inputs on the moogerfoogers required TRS inputs such as on the EP2 for power requirements, so if you are using a TS-style expression pedal that may be why it is not working for you (although I may be wrong, I shall bow before more experienced opinions if what I think is not the case) 
I use the Exp2 (if that´s the one with TRS). So, sadly that´s not it.
Thinking of the coveted bi-phase, I hooked up almost every LFO I had to my phaser to make:
http://soundcloud.com/rhythmicons/quadraphasing-bleepsnbloops
Bummer…I haven’t tried this but when I get a chance I shall experiment with mine and see if I can get anything different…
you can do what you described. you have to make sure you have the right settings first. the 103 has to be in 12 stage mode first, if the res is set to high you wont hear the frequencies controlled by the sweep in to well, and it works best when running stereo (audio out sends the frequencies controlled by internal lfo, aux out sends frequencies controlled by sweep in i believe)
OK. I´ll try that. Thanks!
Tried it and checked everything thoroughly. The Sweep In frequencies still won´t move. Tried everything I could imagine.
Exp pedal (EP-2 I guess, it douesn´t say) into SWEEP IN, 12 stage and res at 3 or up, AUX OUT in one ear and AUDIO OUT in the other = No movement when using pedal.
Checked my exp pedal with the MF-101 and it worked.
Tried sending ENV OUT from MF-101 to see if it got the frequencies to move, but nothing.
I can split the frequencies and hear the AUDIO OUT half move with the oscillator, but the other half always stays put. So frustrating! 
It says in the manual that the input plug inserted in SWEEP IN should be tip-sleeve (mono). Is this what stops it from working?
An EP-2 will NOT work. (edit : in this jack)
Look at the back of the MF-103. The top row jacks (except for audio in) are labeled in white. The white labeled jacks power the expression pedal because the ring carries the 5v required for the pedal to work as a voltage divider.
Those that are not white labeled don’t have the ring 5 volts voltage supply.
To use the Sweep In jack, you must insert a TS plug that has some voltage at the tip. There are three ways to do that.
1- Use an MP-201 pedal.
2- Plug the expression pedal (EP-2 or other similar) in the white jack of a CP-251 mult. Patch a TS cable from another jack of this mult to the Sweep-in jack.
3- Use any other device that sends some voltage at the tip of a TS plug.
Note : if you have a VX-351 and a Voyager, you can arrange something with that, and control the sweep in jack with the mod wheel, touch pad, etc. Actually, the VX-351 also has a mult that will power an expression pedal, so you can use that too, without robbing any of the Voyager’ resources.
OK, that´s what I suspected. Thanks for an informative answer. Another reason to get that CP-251 then. Soon my dog of war…
Got an idea. It´ll be a while before I can afford a CP-251. Wouldn´t it be possible to build a box with a 9V-battery a resistor(?) and two tele jacks that could solve this for me? If the resistor gets a 4V load then I can send 5V to the ring on the EP-2 via the input jack. And with the EP-2 tip and sleeve connected to the output jack I can use a mono cable from output to SWEEP IN. Please tell me it could work!
Actually, if I were you (and thankfully not; you don’t want to be me,) I would use a 4.5V wall wart in place of the 9V battery. I find myself going through A LOT of batteries in musical devices if I don’t have the proper wall wart. 
OK. So you think it could work?
I don’t see why it wouldn’t. The logic is sound, and I do not see a single flaw with what you describe.
Hold on just a sec.
I gave you an explanation of how expression pedals work, strictly based on the fact that you mentioned that the input of the Sweep In is supposed to be a TS plug and a quick glance at the labeling on the back of my own MF-103.
But as I just learned recently, it’s best to thoroughly read the manual before talking about a feature you haven’t used before (or that you haven’t grasped completely).
Now reading the manual, it says that if you use this jack, you are actually disconnecting half of the 12 stages from the LFO, to be replaced by another LFO-like control voltage, not a steady CV from an expression pedal. So I don’t think an expression CV will do much for you into this jack.
Try to feed in another LFO into the Sweep In jack (like the LFO out of the MF-102) if you have one.
But an LFO could be moving very, very slowly. I can´t imagine anything in the curcuit that wouldn´t work simply because the CV value isn´t changing. Although it will change since that´s what I want the exp pedal to do.
If that’s what you want, then there’s nothing wrong with it then. Just wanted to make sure you were aware of it. Moogerfoogers almost beg by themselves for experimental setups.
I can think of many many ways to get the 5v ring supply, without the need of a second power supply or external battery, one of which is using the one you have right now, just tapping into it.
Just keep in mind you need TWO resistors to create a voltage divider from a higher voltage source. One resistor will not work since the voltage sampling circuit downstream has no practical load (a few microamps at most).
Also, if you try using an external 4.5v power supply, put something like a 25K resistor in line to make sure you don’t feed in 300ma somewhere somehow.
Great!
Name one!
Of course I need two, glad you reminded me. And thanks for the tip if I´d use an external power supply.
I just did, sort of… cut the lead of the power supply and split it in two (y style), on one you reattach the connector, with the other one you do whatever you want, as long as you don’t put a 1 amp load
But nevermind that, there’s a better solution. I’ll work out the details, for my own fun, test it some and be back once done.