the 18v power outlet works for MF-101

Jebus0000 · Post by **Jebus0000** » Sat Nov 22, 2008 4:00 pm

a friend bought a gator pedal case thingy that has a built in power supply. When he plugs in his MF-101 into the regular 9v outlet it works but then no other pedals work. However the 18v outlets also work with the MF-101. Is it safe to run it like this for extended periods of time?

latigid on · Post by **latigid on** » Sun Nov 23, 2008 3:57 am

No! Going over 9V is the quickest way to fry your pedal. The electronics need to dissipate more heat, leads to fatigue, etc..

Moogerfoogers use a positive tip supply, so my guess is that the other pedals use the reverse polarity. Just a guess, YMMV

varice · Post by **varice** » Mon Nov 24, 2008 10:06 pm

The manual states that the maximum voltage that should be used is +15 volts.

funkyzebulon · Post by **funkyzebulon** » Tue Dec 23, 2008 10:06 am

I use mine with 12V, it's just great.

willi · Post by **willi** » Wed Dec 24, 2008 12:18 am

latigid on wrote:Moogerfoogers use a positive tip supply, so my guess is that the other pedals use the reverse polarity. Just a guess, YMMV

Plugging things in with reversed polarity is also a good way to fry gear, just for references sake.

username · Post by **username** » Wed Dec 24, 2008 6:38 pm

funkyzebulon wrote:I use mine with 12V, it's just great.

Are you using a pedal power? I thought about doing this with my phaser but I think I read the pedal power puts out a little over 12volts when set to 12

Voltor07 · Post by **Voltor07** » Thu Dec 25, 2008 3:17 am

username wrote:
funkyzebulon wrote:I use mine with 12V, it's just great.
Are you using a pedal power? I thought about doing this with my phaser but I think I read the pedal power puts out a little over 12volts when set to 12

Most power adapters put out the next setting up. For example, a 9V setting will read 12V on a voltmeter. A 7.5V setting will read 9V. A 12V setting will read 15V. Which is why Moogerfoogers are designed to run on 15V. Because most people who read "12V" on a power supply assume that there is 12V on the output. There's not.

theglyph · Post by **theglyph** » Thu Dec 25, 2008 9:44 am

The key here is tip positive. This is the type of adapter used by the Foogers and other gear.

Roland/Boss pedals work with tip negative adapters and since they are so ubiquitous their adapters tend to got plugged into Foogers more frequently than would be hoped. This will kill the pedal.

Voltor07 · Post by **Voltor07** » Thu Dec 25, 2008 11:07 am

theglyph wrote:The key here is tip positive. This is the type of adapter used by the Foogers and other gear.

Roland/Boss pedals work with tip negative adapters and since they are so ubiquitous their adapters tend to got plugged into Foogers more frequently than would be hoped. This will kill the pedal.

Happy Holidays, theglyph! Surprised to see you on the forums this holiday.

latigid on · Post by **latigid on** » Thu Dec 25, 2008 6:45 pm

Yeah, Merry Xmas (we're one day ahead here)!

In all likelyhood, you will destroy your adapter if you get the polarity wrong. Most electronic gear employs a protection or power diode to guard against this. This acts as a big "resistor" that can over-current the power supply.

The reason the voltage reads higher (e.g. 12V at 9V setting) is that the unit is drawing less current than the rated maximum. You can use a regulated supply or build your own pretty easily.

Boss-type polarity is really the one that is the wrong way around. It makes sense to have a negative ground plane, but hey it still works.