wall wart electrical question

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omtayslick

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I recently aquired an ART Levelar to play around with on bass. The party that shipped it to me sent it with a Zoom 9V 300Ma power supply. Won't work.

The transaction was a hassle so I'm not going back to the seller for the wall wart. The Levelar manual states that it requires 9V 700Ma. I have an old power adapter from an ART reverb unit laying around that puts out 9V 800Ma. Any reason hazardous or otherwise to not use this with the Levelar? It does power up the unit.
 
omtayslick said:
I recently aquired an ART Levelar to play around with on bass. The party that shipped it to me sent it with a Zoom 9V 300Ma power supply. Won't work.

The transaction was a hassle so I'm not going back to the seller for the wall wart. The Levelar manual states that it requires 9V 700Ma. I have an old power adapter from an ART reverb unit laying around that puts out 9V 800Ma. Any reason hazardous or otherwise to not use this with the Levelar? It does power up the unit.
Click to expand...
The only problems would be if one was AC and the other DC, and if DC, then whether the plug polarity was correct. If the unit powers up, then neither of these is the case, and you're good to go. If a wall wart is rated at more current (ma) than what's called for, that's no problem - the unit being powered will only draw what it needs.
 
Both the power supply and the unit should specify AC or DC voltage... don't be plugging a DC adapter into a DC Unit without checking the polarity first... Poof!!!

OK... some circuits do have built in protection from reverse polarity... Do you feel lucky??
 
MOFO Pro said:
Both the power supply and the unit should specify AC or DC voltage... don't be plugging a DC adapter into a DC Unit without checking the polarity first... Poof!!!

OK... some circuits do have built in protection from reverse polarity... Do you feel lucky??
Click to expand...

I shall be cautious.
 
You don't have to play russion roulette with the power supply. As others have said, the amperage doesn't matter much, as long as it will supply enough. Of course, it must match your ART, either AC or DC. For the polarity, it should be printed on both the adapter and the device near the plug.
AC_adaptor_polarity.png


Just make sure they are the same.
 
i dont think i've ever seen a manuf that uses + on one unit and- on another so your probably good to go...
 
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