Power supply ma overload noob question

[maddnotez]

Planning to get my first power brick and have it narrowed down to the 1 Spot CS12. Before I spend the money I wanted to ask about the MA.

Most of my pedals say they need at least 100ma so I assume I know this answer but I wanted to be 100%. Is it possible to overload with the ma and fry a pedal?

For example the 1 spot has 100ma, 250ma, 500ma and 800ma taps. I should be fine using any of them on any pedal correct? As long as the minimum ma requirements are met there should be no maximum?

Please help a noob out





Also if anyone wonders why the CS12, I have two 18v pedals and a total of 7-8 pedals to power. Seems like the best or only one to power all of that without having to split taps and whatever else.

 

[rottingcorpse]

yes,from experience i can say with absolute certainty you can fry a pedal by running too much current thru it.

 

[maddnotez]

yes,from experience i can say with absolute certainty you can fry a pedal by running too much current thru it.

At first I assumed this was the case. The only thing that makes me question this now is my MXR 10 band. I have to double check the power supply (it's not here) to be sure but the manual says the newer power supply has 1,000ma.

https://www.musiciansfriend.com/accessor ... 8v-adapter

"Note: Be sure to check the label on the power supply to ensure compatibility with your effects pedal. ECB-004 adapters manufactured before summer 2011 had a current rating of 150mA and are not compatible with the DC Brick. Newer ECB-004 manufactured summer 2011 or later, which are marked with a current rating of 1A (1000mA), can safely be used with the DC Brick."


So unless the manual specifies (some actually don't) I guess it's just a roll of the dice?

 

[rottingcorpse]

pretty sure the pedals will say on the bottom what the current draw is. thats how i figured out my mistake. man,did i feel dumb that day. had to reimburse my bro for the pedal. D'OH!!!

 

[rokket2005]

Umm, no. You can overvolt a pedal, but the pedal will only use however many ma it needs, known as current draw. I can run an od that only needs 10-15 ma on a 500 ma plug and it won't fry the pedal.

 

[RACKSYSTEMS]

yes,from experience i can say with absolute certainty you can fry a pedal by running too much current thru it.

No this is entirely incorrect. Power supplies such as this are regulated outputs,which mean they are 9vdc or 18vdc all of the time not more or less voltage. The current just has to do with how much current can be pulled from that output. Now there are wall worts out there that are not regulated, so a 9vdc supply could be 15 to 18v if it is not loaded down to the exact current stated on the power supply. There will be no issues with the cs12 at all, just don't use the 9vac output on it for a 9vdc pedal..

Dave Friedman

 

[maddnotez]

yes,from experience i can say with absolute certainty you can fry a pedal by running too much current thru it.

No this is entirely incorrect. Power supplies such as this are regulated outputs,which mean they are 9vdc or 18vdc all of the time not more or less voltage. The current just has to do with how much current can be pulled from that output. Now there are wall worts out there that are not regulated, so a 9vdc supply could be 15 to 18v if it is not loaded down to the exact current stated on the power supply. There will be no issues with the cs12 at all, just don't use the 9vac output on it for a 9vdc pedal..

Dave Friedman

Thanks Dave, and everyone. So yeah I think you fried the pedal by giving too much voltage not current (ma).

Just wanted to be sure.

I really liked the Buffer Bay you showed at NAMM. That may end up on the board most likely.

I've been looking at the Dingbat Board but am interested to see more about the Friedman boards as well.

 

[Chester Nimitz]

Dunlop DC Power Brick is solid ive used it for about 5 years now.

Never a problem.

7-9 volt & 3-18 volt outputs.

 

[maddnotez]

Dunlop DC Power Brick is solid ive used it for about 5 years now.

Never a problem.

7-9 volt & 3-18 volt outputs.

Oh wow thanks, I didn't see the 18's on this before. I thought the 1 spot was the cheapest option but I like this one. These cost much less and I'm seeing them used for almost 1/3 of the price of the 1 spot.

I may get this one instead thanks.

 

[NaturalBornBoy]

The old DC Brick doesn't have isolated outputs. The new one does.

 

[Chris6870]

Umm, no. You can overvolt a pedal, but the pedal will only use however many ma it needs, known as current draw. I can run an od that only needs 10-15 ma on a 500 ma plug and it won't fry the pedal.

This. It's whats available.

 

[maddnotez]

The old DC Brick doesn't have isolated outputs. The new one does.

Ended up getting the MXR m237.

 

[NaturalBornBoy]

The old DC Brick doesn't have isolated outputs. The new one does.

Ended up getting the MXR m237.

So you went with the non isolated one. Cool. As long as noise isn't an issue with your setup.

The MXR psu with isolated outs is called the Iso-Brick. Not the DC Brick. My bad.

 

[maddnotez]

The old DC Brick doesn't have isolated outputs. The new one does.

Ended up getting the MXR m237.

So you went with the non isolated one. Cool. As long as noise isn't an issue with your setup.

The MXR psu with isolated outs is called the Iso-Brick. Not the DC Brick. My bad.

All good I got it for a good price and if noise becomes an issue I'll just upgrade later. Far away from the CS12 I wanted lol but I need something asap since I've ran out of wall warts to use. I haven't upgraded the board yet either so this will save me some $$ for now.