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Post new topic Who's Power Supplies Are -Center, +Ring?
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Author Topic:  Who's Power Supplies Are -Center, +Ring?
Chris Bauer

 

From:
Nashville, TN USA
Post  Posted 19 Oct 2013 5:56 am    
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Okay, okay, yet another question you'd think I'd know the answer to after all these years... I want to use a power supply now and then with a couple of pedals that are -Center, +Ring. Search though I might among my rat's nest of adapters, I can't find any that announce how they're wired.

Any clues on who's adapters are wired that way? Any pros and cons of using certain ones over others?
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Jon Light (deceased)


From:
Saugerties, NY
Post  Posted 19 Oct 2013 6:09 am    
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Hey Chris--I'm surprised. I have a rat's nest of adaptors and they are all marked. The only ones that do not specify polarity are AC/AC which has no polarity (rather than AC to DC).

You may very well know this but this diagram depicts tip negative:




It is sometimes referred to as "Boss" style.
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Chris Bauer

 

From:
Nashville, TN USA
Post  Posted 19 Oct 2013 6:25 am    
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Thanks, Jon. I checked my Boss adapters and they have a slightly more cryptic diagram that I now know to feel confident means -center/+ring. Though the diagrams certainly look like they mean that, I am well known for wildly misunderstanding what the rest of the world seems to see as unambiguous markings and directions.

Anyone have brands of power supply you recommend or recommend against these days?
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Jon Light (deceased)


From:
Saugerties, NY
Post  Posted 19 Oct 2013 6:34 am    
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This is you, Chris, and not some idiot running 10,000 watts of pedals on a stupid pedal board like someone I know, so you don't likely need a heavy duty supply like a Pedal Power 2. I've never had trouble with the One Spot

http://www.guitareffectspedals.com/Visual-Sound-c89/
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Brad Sarno


From:
St. Louis, MO USA
Post  Posted 19 Oct 2013 11:09 am    
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Center negative is THE standard for 9v guitar pedals with coax connectors, Boss, Ibanez, Fulltone, and the other gazillion pedal makers.

Center positive is rare and will likely be associated with a pedal that came with its own supply, and likely NOT 9v, maybe 12v or other. If a pedal is not marked, you can almost bet it's gonna be the standard 9v center negative type.

Also, it's common that the types that use non-standard supplies will have a coax jack center pin that's oversized and won't even allow you to plug in the standard type.

B
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Chris Bauer

 

From:
Nashville, TN USA
Post  Posted 19 Oct 2013 11:50 am    
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Thanks, Brad!
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Bill L. Wilson


From:
Oklahoma, USA
Post  Posted 19 Oct 2013 9:12 pm     Power Supply.
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You can always check these wall warts and different power supplies with a volt meter to determine polarity.
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Lane Gray


From:
Topeka, KS
Post  Posted 20 Oct 2013 2:11 am    
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Brad Sarno wrote:
Center negative is THE standard for 9v guitar pedals with coax connectors, Boss, Ibanez, Fulltone, and the other gazillion pedal makers.

Center positive is rare and will likely be associated with a pedal that came with its own supply, and likely NOT 9v, maybe 12v or other. If a pedal is not marked, you can almost bet it's gonna be the standard 9v center negative type.

Also, it's common that the types that use non-standard supplies will have a coax jack center pin that's oversized and won't even allow you to plug in the standard type.

B

Brad, I've found that computer peripherals that run on 9V (fortunately rare) are usually center positive, and some with plugs close enough in size that they'll plug up.
Annoying.
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects
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David Mason


From:
Cambridge, MD, USA
Post  Posted 20 Oct 2013 4:01 pm    
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There are some 1Spot adapters available, among them is a "reverser" male-female doodah. Elderly music HAD them: they've only got a few listed now:

http://elderly.com/brand/ELA_visual%20sound.html

OK, here we go:
http://www.ebay.com/itm/Visual-Sound-CYR-Reverse-Polarity-Converter-For-1-Spot-Adapters-/290945247541?pt=Guitar_Accessories&hash=item43bdb02935

I have a box with several different ones, they used to sell it as a kit, maybe still do. Be sure to search "1Spot", not ONE-Spot".... Smile
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Willie Sims

 

From:
PADUCAH, KY, USA
Post  Posted 21 Oct 2013 10:32 am    
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Chris, if you are having trouble determining the polarity of your transformers, you can check them with a voltmeter to determine the polarity. If they're not what you need cut the wire into an reverse the wires. Just be sure that they are the correct milliamps.

Willie Sims
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Drew Pierce

 

From:
Arkansas, USA
Post  Posted 24 Oct 2013 1:28 pm    
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The Danelectro DA-1 powers most Boss pedals at about a third the price of a Boss. Caveat: haven't checked these lately for compatibility/availability.
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Drew Pierce
Emmons D10 Fatback, S10 bolt-on, Zum D10, Evans RE500, Hilton volume and delay pedals.
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