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  #1  
Old 07.06.07, 1:26 PM
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Use a 12V adaptor with 9V pedals?

Is it safe??

Thanks
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  #2  
Old 07.06.07, 1:29 PM
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Probably not. Why can't you use a 9v one?
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  #3  
Old 07.06.07, 2:25 PM
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Old Boss pedals (marked "ACA" not "PSA") actually need 12v instead of 9v; Some pedals have fancy circuitry that allows safe operation at different voltages: Unless this is clearly stated i'd always stick with the voltage specified on the pedal - It's remarkably easy to fry the pcb, and not always easy/cheap to repair.
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  #4  
Old 07.06.07, 2:45 PM
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Quote:
Originally posted by pop_n_fresh
Probably not. Why can't you use a 9v one?
Just got my Metal Muff and that's the only spare adaptor I can found around the house!

I did get excited when I found a 9V one but it didn't work, must be old and broken.

Not to worry, I'll just buy a 9V one.

Cheers guys.
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  #5  
Old 07.06.07, 4:14 PM
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Some Fulltones can be run on up to 18V. Your best bet is e-mailing your pedals' manufacturers about it, as some pedals can and some (most) can't. I did that a while ago and all of them (even EHX) answered me within a week.
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Old 07.06.07, 6:25 PM
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Related question (I don't want to start another thread/waste space).

If I found a 9-volt DC adapter lying around the house (it was for one of those inMotion thingies), can I use it to safely power a pedal?

If yes, can you buy (cheap) 9-volt adapters which aren't made specifically for guitar but will work?
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  #7  
Old 07.06.07, 6:59 PM
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"Will work" doesn't mean "will sound good". Many improper adapters will generate lots of hum. But you can try them. Just make sure the plug is center negative (for BOSS-style DC jacks) or tip positive (for EHX ones).
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Originally posted by pop_n_fresh
The thought of EMGs on a Jag makes me vomit a little.

Originally posted by paradeblonde
Beep beeeep beeeeeeeeeep beeeeeeeeeeeeeeeeep BEEEEEEEEEEEEEEEPPPPPPPPP
Selling BOSS FW-3. I live in Brazil, mind you, so prepare yourself for $30-ish for shipping and waiting. Local pickup available, along with beautiful beaches and cheap bitches.
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  #8  
Old 07.06.07, 7:33 PM
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Quote:
Originally posted by asatbluesboy
But you can try them. Just make sure the plug is center negative (for BOSS-style DC jacks) or tip positive (for EHX ones).
And how does one do that?
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  #9  
Old 07.07.07, 12:29 AM
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Quote:
Originally posted by Zeppelanoid
And how does one do that?
It will have a symbol like this
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  #10  
Old 07.07.07, 7:43 AM
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On occasion I do it because I like the sound. I SMACK the my boss heavy metal w/ extra volts sometimes, and every so often other pedals feel the power supply of my Dano Cool Cat (18 volts?!?). I think the possible damage maybe worth the tone. Tell me that when I'm crying about my broken pedals though.
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  #11  
Old 07.07.07, 7:44 PM
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Here's the deal. Many active components like OP amp ICs and such in your pedals will work on a wide range of voltages from around 7 to 15v usually, whatever the spec is. Depending on how it is biased, it will not effect most transistors. What will cause you problems is underated electrolytic caps that may explode and little glass diodes that tend to draw more current than they are rated for. I wouldn't suggest running a power supply on a pedal more than 20% more than the rating.
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Old 07.26.07, 11:52 PM
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Quote:
Originally posted by hard montana
On occasion I do it because I like the sound. I SMACK the my boss heavy metal w/ extra volts sometimes, and every so often other pedals feel the power supply of my Dano Cool Cat (18 volts?!?). I think the possible damage maybe worth the tone. Tell me that when I'm crying about my broken pedals though.
speaking of the cool cat, i just picked one up without the original adapter. the danelectro 18v adapter is no longer made so i'm looking around the net for another one.

so i see that other companies like EH, Dunlop make 18v supplies but they max at 1000mA. on the bottom of the cool cat, it says the max is 300mA so my question is, will getting one of the supplies that goes up to 1000mA damage the cool cat? burn it out or something? am i supposed to get a supply that goes up to 300mA and below?

thanks for the help.
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  #13  
Old 07.27.07, 11:54 PM
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Quote:
Originally posted by drashi
speaking of the cool cat, i just picked one up without the original adapter. the danelectro 18v adapter is no longer made so i'm looking around the net for another one.

so i see that other companies like EH, Dunlop make 18v supplies but they max at 1000mA. on the bottom of the cool cat, it says the max is 300mA so my question is, will getting one of the supplies that goes up to 1000mA damage the cool cat? burn it out or something? am i supposed to get a supply that goes up to 300mA and below?

thanks for the help.
The rating on the supply is the maximum current the supply can produce. As long as the Cool Cat draws less current than the replacement power supply max spec it should be fine. You should also be sure that it is the same type of output such as an DC or AC supply. An AC supply is just a step down transformer. A DC supply is rectified filtered and usually regulated.
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