Center positive to center negative switching

[Diddywah]

Question to any TB´er in the know:

I have an Eden pedal with a center positive barrel connector 15V
I also have a Yankee PSU that can have one output switched to provide 15 V, but the output is center negative.
Can I just DIY the cable; cut and switch around the leads so the center negativ goes to positive in the other end?
Why? Because I want one less wall wart

 

[Ba55Man1ac]

Yes. Just make sure you insulate well.

 

[Diddywah]

Thanks! I thought so. Properly insulated of course. After I posted I found I could buy an adapter cable that reverses polarity, but why buy when I have a cable I can DIY? I will use some red heat shrink cover to avoid confusion.

 

[Feral Feline]

Or just buy a (small) adapter, they're cheap — I've got a few for my Cioks PSU.

A friend advised me to not waste time making "tools" that can be easily bought; but where is the fun and edification in that?

So, yeah, DIY.

 

[villegastx]

It is possible to rewire the pedal conection center positive to center negative to make it work with a regular center negative cable?

 

[Killing Floor]

Yep. Lots of older pedals are center +. It’s just wire so if connections are proper and it’s insulated you’re fine.

If you don’t want to do it there are converters available for most brands.

 

[villegastx]

Thanks, I dont want to mess with converters and fancy wires. Just mod pedal and forget about it.

 

[agedhorse]

Most 9V pedals are center negative (also known as the "BOSS" standard). Most pedal manufacturers follow this standard for 9V pedals.

Most 12, 15 and 18V pedals are center positive, as are most pro audio pieces that use an outboard power supply.

Some pedals can use either center positive or center negative, which prevents damage from mistakes in sorting out the above information.

 

[villegastx]

Im planing to buy an old diamond bass comp wich is 18v/24v center positive.
The junior version is 9v center negative, but harder to find.

 

[4Mal]

I use Cioks and just buy the correct cables for what I'm powering up. In my case the HX stomp and Radial BassBone hve been the oddballs. Cioks has an answer for each. Sweetwater had them in stock. They come color coded... and they were about as expensive as what I would have spent building them....

On an earlier iteration using a non-Cioks power supply, I diy'ed adapters for the BassBone and also old Trace Elliot 18v cables. That was fine as nobody sold the right cables for my application.

I tend to save my DIY efforts to stuff I can't get off the shelf or where I have time and there is a large cost differential between COTS and DIY.

IMO modding the pedal is fraught with different sorts of peril and something that needs to be disclosed or reversed if the pedal changes hands down the road... Not a direction I would choose.