Can I Use a 100ma Plug With a 300ma Load

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Can someone help me sympathize mA?

• Thread starter frizbplaya
• Outset date Jul 29, 2008

• #1

My electronics ignorance is getting the best of me and miliamps are confusing the crap out of me.

Most of my pedals are 9v with different amounts of mA (usually <100mA). It seems like a general rule is to make sure I'm supplying the pedal with more mA than it needs in order to not damage it.

That's fine, merely then I read on the line6 support forum that yous shouldn't utilize less than a 2,000mA ability source for the DL4... but the PP2 line6 specific jacks just ouput 250mA and line6 says that'southward fine. A Fourth dimension Factor needs 1,200mA but they don't recommend the PP2 in line6 mode because 250mA isn't plenty. What gives???

I have a new pedal that takes 400mA, is 250mA close enough or do I need a deviation souce. If I need a different souce should it be 9V 400mA or tin it exist 9V and anything More than 400mA?

HELP! Thanks in advance.

• #2

ok i hope this helps you...

1000mA=1amp

I take both the DL4 and the TF...

The DL4 power supply that yous can buy has 1500mA merely if you look on the dorsum of the DL4 is asks you for a mim of 1200mA...y'all should be able to run the dl4 on the line six mode on your PP2 with out whatsoever problems considering the actual describe of the pedal is far less than that...it'due south disruptive because the line 6 requires Air-conditioning and your giving it DC from your PP2...The timefactor simply draws about 600mA DC when being used and has a heart positive tip but the manual says otherwise...I would use the adapter supplied with information technology...that's what I am currently using...they are both digital pedals and require a bit more juice so most...

if you have more problems with your timefactor and have any questions you lot should subscripe to the timefactor lounge where alot of your questions might already be awnsered...i belive there is a disscusion most the very question your request righ now...

For Timefactor Lounge click hither

• #3

Per the PP2 manual, outputs i-four and vii-nine will put out a max of 100mA, outputs five-half dozen will put out 250mA, all outputs at 9v. Each pedal volition only take what information technology needs, if it needs 65 mA for proper operation, it will use 65mA. If you exceed the mA draw (more than 100mA one-4,7-8 or 250mA 5-6), you tin can harm the PP2. At 9v, the PP2 won't power a 300mA load (well) from a singlee output. You could possibly get a Y cable in parallel and use both of the higher outputs. This would give you an available 500mA to draw.

http://www.voodoolab.com/manuals/pp2plus_manual.pdf

• #4

Compare your question with amp and it is piece of cake to sympathise.
If the voltage is 240 Volt and the ampage is 16 then you can run 3840 Watt from that source without blowing the fuse.
That is considering 240 X 16 = 3840

Catechumen this into milliampere and you volition understanf that a 1000mA power supply tin load 10 pedals that requires 100mA each. 4 pedals that requires 250mA each etc.

Larger mA allows you to run more than effects on a single psu. it depends only of the drainage from every unmarried unit of measurement how many.

Promise this was to some assist.

• #five

Amperage should be thought of as "draw" every bit in the pedal draws xx amount of current (measured in mA or A) from a power source.

If you lot accept a pedal that draws 400mA, and plug it into a brick that is merely capable of supplying 250mA, then the pedal will never get enough current to operate properly. The pedal will not (or should not more accurately) describe more it is rated, so your power supply should be rated *at least* as high as the pedal information technology is powering.

Voltage should be the aforementioned (it can vary, but if you don't understand it, don't practise it)
Amperage can be higher on the PS than it is on on the pedal, merely not lower

HTH,

GAD

• #vi

Amperage should be thought of as "describe" as in the pedal draws 20 amount of current (measured in mA or A) from a power source.

If y'all take a pedal that draws 400mA, and plug it into a brick that is only capable of supplying 250mA, then the pedal volition never get enough current to operate properly. The pedal will non (or should non more accurately) describe more than information technology is rated, so your power supply should be rated *at least* as loftier as the pedal it is powering.

Voltage should be the same (it tin can vary, but if yous don't understand it, don't do it)
Amperage tin can be higher on the PS than it is on on the pedal, but not lower

HTH,

GAD

Nicely explained.
Since yous are touching on voltage I thought I should add together that the weakest signal in many guitar pedals is its capacitors. I 16V rated capacitor is only recommended to operate on a voltage = 2/3 of its rating. This is because all circuits generate meridian currencies that exceed the supply voltage.

And then IF experimenting with a nine volt rated analog upshot pedal NEVER feed information technology with more than 10.66 Volt.

• #7

I other affair. If you operated a low-depict pedal from an UNREGULATED source with high capacity, your voltage output could (and most likely will) be significantly higher than the pedal is designed to handle.

I utilize the trivial transformers from Mouser that put out 9V at nearly 200 mA apiece, and run them through a rectifier and a regulator earlier they become out to the pedals. I've got almost 8 transformers under the hat of my pedal board, and it works very well. Every pedal has its own isolated supply, and it cost me about the same as some off-the-shelf wonderpower adapter thingie that never really does the job correct.

rooster.

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