Powering multiple Foogers

latigid on · Post by **latigid on** » Sun Nov 08, 2009 7:39 pm

I'm no expert in Switchmode PSUs, however for conventional transformer based designs there is a limit to the amount of current one can draw.

From personal experience, a 5A transformer with 4 or 5 LM7809 regulators (max 800mA each) wired in parallel oscillated heavily and was unusable.

My latest solution uses a single LM338 regulator (5A max) with a large 8000uF cap. It gets really hot and needs a big heatsink and a fan, but works okay otherwise. There might be a little bit of noise coming through the 'foogers but it may be how I wired them up (the delay seems a bit whiny).

So perhaps the solution would be to buy two Voodoo Labs units?

DeFrag · Post by **DeFrag** » Sun Nov 08, 2009 10:53 pm

Good point latig on.

But the MF-102 only requires 100mA nominal & the other MFs may require less than the 300mA adapters they come with.

Just Me · Post by **Just Me** » Sun Nov 08, 2009 11:45 pm

You could always use a power squid and get 5 outlets from one space of your other power strip.

latigid on · Post by **latigid on** » Sun Nov 08, 2009 11:58 pm

DeFrag wrote:Good point latig on.

But the MF-102 only requires 100mA nominal & the other MFs may require less than the 300mA adapters they come with.

latigid on on Sun Jan 18, 2009 wrote:I got out the multimeter tonight and measured the draw of all of the Moogerfooger effects. I don't have the Multipedal yet, sorry. The current draw changed about 10-20 mA when going from no signal to "red" drive level. And my meter is really cheap/broken, so I could only read to 10 mA.

Measured using a regulated 9 VDC supply.

MF101 40-50 mA
MF102 40-50 mA
MF103 70-90 mA
MF104SD 130-150 mA (long delay setting), 140-160 mA (short delay setting)
MF105 210 mA
MF105B 220 mA
MF107 100-130 mA
CP-251 40-50 mA, but it wasn't processing anything.

This could give a rough guide to anyone trying to daisy-chain effects off fewer power supplies. I'm sure you're supposed to allow for more than this, so if any engineers have any insight, feel free to share.

Of course, YMMV.

You can do the math depending on what you have

I've got all those with an extra 102. It's over one amp draw, so one or two wall warts daisy chained can work in my case. You should also allow a bit of headroom too.

DeFrag · Post by **DeFrag** » Mon Nov 09, 2009 1:36 am

Does the shared grounds induce any noise like a 1Spot adapter does when run through a number of Boss pedals?

Charlie Labs · Post by **Charlie Labs** » Mon Nov 09, 2009 4:45 am

Monster makes a few rack mount and floor strip power supplies. I use the Pro 3500 for my studio and a pro 2000 for live.

http://www.monstercable.com/power/musicians.asp

You can safely plug your whole set up into one strip/conditioner for less then the cost of one pedal. In my opinion it's worth the cost.

EricK · Post by **EricK** » Mon Nov 09, 2009 9:15 am

How many outlets does that have on it and are they spaced far enough for the Fooger wall warts?

Eric

Charlie Labs · Post by **Charlie Labs** » Mon Nov 09, 2009 12:21 pm

The link in my last post directs you to monsters pro power line. There you can find detailed pics/specs of all their models. If the info you need is not there, you can call or email monster directly with the width dimensions of your power supplies and they can help you out. Be precise with your measurements.

Here's the link again for those too lazy to scroll up

http://www.monstercable.com/power/musicians.asp

If I had a dial caliper handy I'd tell you the center to center dimension of the inputs. I believe thats the info you need.

Amos · Post by **Amos** » Mon Nov 09, 2009 3:32 pm

DeFrag wrote:Does the shared grounds induce any noise like a 1Spot adapter does when run through a number of Boss pedals?

YES. Big-time. I tested the 1Spot with Moogerfoogers and found it unusable for recording due to the ringing noises, which became louder the more Moogerfoogers you tried to power off of one shared connection. Isolated ground is the only way to go, if you want quiet audio.

tubeampguy · Post by **tubeampguy** » Wed Nov 11, 2009 1:43 am

Amos wrote:
DeFrag wrote:Does the shared grounds induce any noise like a 1Spot adapter does when run through a number of Boss pedals?
YES. Big-time. I tested the 1Spot with Moogerfoogers and found it unusable for recording due to the ringing noises, which became louder the more Moogerfoogers you tried to power off of one shared connection. Isolated ground is the only way to go, if you want quiet audio.

Welcome to the discussion Amos!
Please fill us in why there is a absence in the Moog product line of a power supply for multiple Moogerfoogers including the MP-201. This is very frustrating why this isn't being addressed. Individual wall warts (times every Moogerfooger I own) just doesn't work for live stage work.I am sure that I am not alone on this. This approach is probably fine if you had one or two Foogers BUT not a whole rig of them.

Please look at my list of all my Moog products and please give me some insight how to power my Moogerfooger rig. I don't mean power strips and wall warts. I mean one power supply for my whole rig. Thanks Amos.

DontBelievetheHype · Post by **DontBelievetheHype** » Wed Nov 11, 2009 3:20 am

tubeampguy wrote: Welcome to the discussion Amos!
Please fill us in why there is a absence in the Moog product line of a power supply for multiple Moogerfoogers including the MP-201. This is very frustrating why this isn't being addressed. Individual wall warts (times every Moogerfooger I own) just doesn't work for live stage work.I am sure that I am not alone on this. This approach is probably fine if you had one or two Foogers BUT not a whole rig of them.

Please look at my list of all my Moog products and please give me some insight how to power my Moogerfooger rig. I don't mean power strips and wall warts. I mean one power supply for my whole rig. Thanks Amos.

I'm not (amos) familiar with all the options on the market, but I'll put out another recommendation for the Voodoo Labs PP2+ as you could fit the whole rig into one of them, and a powerstrip powered through the AC outlet on the back of the PP2+ so that ultimately you only have 1 power cable to the mains for your whole rig:

Outputs 1-4 (100ma)
MF-101 Low Pass Filter
MF-101 Low Pass Filter
MF-102 Ring Modulator
MF-103 12-Stage Phaser

Outputs 5-6 (250ma)
MF-104Z Analog Delay
MF-105 MuRF

Outputs 7-8 (100ma)
MF-107 FreqBox
CP-251 Control Processor

Courtesy AC outlet (200 watts max)
CP-251 Control Processor
MP-201 Multi Pedal
Etherwave Plus

In my experience I've found that the 'foogers powered as described above provides adequate power and headroom, and quiet operation- as quiet as 'foogers will get! :p If anything, my rig is even less-noise prone since moving from wall-warts to the PP2+'s, and 99% of the time it is dead quiet. Daisy-chaining may introduce noise, but with some experimentation you could possibly daisy chain one of the outlets(they're all isolated) and fit the 2nd CP-251 in there as well, though either way the AC outlet is sufficient to power the MP, CP, and Etherwave.

I'm currently using two PP2+'s to power my two board setup consisting of over 20 pedals including 5 'foogers and an MP201; this has streamlined my rig considerably and leaves me with only 2 power cables to plug into the mains, one from each board. The MP201, FCB1010, and a couple pedals on the boards are powered through a small powerstrip plugged into the 'Courtesy AC outlet' and mounted under my boards.

tubeampguy · Post by **tubeampguy** » Wed Nov 11, 2009 1:54 pm

DontBelievetheHype wrote:
tubeampguy wrote: Welcome to the discussion Amos!
Please fill us in why there is a absence in the Moog product line of a power supply for multiple Moogerfoogers including the MP-201. This is very frustrating why this isn't being addressed. Individual wall warts (times every Moogerfooger I own) just doesn't work for live stage work.I am sure that I am not alone on this. This approach is probably fine if you had one or two Foogers BUT not a whole rig of them.

Please look at my list of all my Moog products and please give me some insight how to power my Moogerfooger rig. I don't mean power strips and wall warts. I mean one power supply for my whole rig. Thanks Amos.
I'm not (amos) familiar with all the options on the market, but I'll put out another recommendation for the Voodoo Labs PP2+ as you could fit the whole rig into one of them, and a powerstrip powered through the AC outlet on the back of the PP2+ so that ultimately you only have 1 power cable to the mains for your whole rig:

Outputs 1-4 (100ma)
MF-101 Low Pass Filter
MF-101 Low Pass Filter
MF-102 Ring Modulator
MF-103 12-Stage Phaser

Outputs 5-6 (250ma)
MF-104Z Analog Delay
MF-105 MuRF

Outputs 7-8 (100ma)
MF-107 FreqBox
CP-251 Control Processor

Courtesy AC outlet (200 watts max)
CP-251 Control Processor
MP-201 Multi Pedal
Etherwave Plus

In my experience I've found that the 'foogers powered as described above provides adequate power and headroom, and quiet operation- as quiet as 'foogers will get! :p If anything, my rig is even less-noise prone since moving from wall-warts to the PP2+'s, and 99% of the time it is dead quiet. Daisy-chaining may introduce noise, but with some experimentation you could possibly daisy chain one of the outlets(they're all isolated) and fit the 2nd CP-251 in there as well, though either way the AC outlet is sufficient to power the MP, CP, and Etherwave.

I'm currently using two PP2+'s to power my two board setup consisting of over 20 pedals including 5 'foogers and an MP201; this has streamlined my rig considerably and leaves me with only 2 power cables to plug into the mains, one from each board. The MP201, FCB1010, and a couple pedals on the boards are powered through a small powerstrip plugged into the 'Courtesy AC outlet' and mounted under my boards.

Thank you for your insight. I have a one PP2+ already (for a unfinished stomp box/ effects, DMC Ground Control Pro-GCX Audio Loop Switcher, pull out rack shelf project) This is just for my guitar rig. I just don't have any center positive barrel connector cables from DMC yet to try your suggestions. But I plan on trying this.

Your experience from a "LIVE STAGE SETUP" standpoint is truly appreciated. The People suggesting power strip options are not realizing that there is a big difference from a home studio set up once and leave it long term situation to a hurry up and set up while being stepped on by the former band loading out and the clock is ticking stage set up. Omiting 10 wall warts saves a musician alot of set up grief.
I'm trying to figure out this power supply dilemma before I can design and build a roadcase rig to hold all of my Moogerfooger equipment. Thanks again.

Amos · Post by **Amos** » Wed Nov 11, 2009 3:21 pm

tubeampguy wrote: Please fill us in why there is a absence in the Moog product line of a power supply for multiple Moogerfoogers including the MP-201.

The short answer is that we could not engineer a solution that was more economical than the Voodoo Labs Pedal Power 2+.

tubeampguy · Post by **tubeampguy** » Wed Nov 11, 2009 9:38 pm

Amos wrote:
tubeampguy wrote: Please fill us in why there is a absence in the Moog product line of a power supply for multiple Moogerfoogers including the MP-201.
The short answer is that we could not engineer a solution that was more economical than the Voodoo Labs Pedal Power 2+.

Hey Amos,THANK YOU for a quick no BS answer to my question.

latigid on · Post by **latigid on** » Wed Nov 11, 2009 10:47 pm

To any fellow DIY-ers, I think I have found another solution:

https://taweber.powweb.com/store/magnetic.htm

Scroll down to the bottom for "WPDLXFMR-2" (or -1 if you're in the US )

1x bridge rec, 1x 7809 regulator and 2x caps per secondary then you're in business!