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Convert centre positive battery pack into centre negative?

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Convert centre positive battery pack into centre negative?

Big Bob
2 posts
Hi, I'm going to be busking with my electric and want to use my delay pedal. Unfortunately, it chews up batteries so I have bought a 12v rechargeable power supply (much greater aH rating than 9v units) and a 12v to 9v stepdown unit. However, the power supply has a centre-positive barrel plug. Can I simply cut the wires, reverse them, solder and re-insulate or is there something else involved? Alternatively, are there cable adapters I can just plug into to reverse the polarity? Hope you can help!
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Re: Convert centre positive battery pack into centre negative?

induction
954 posts
Big Bob wrote
Can I simply cut the wires, reverse them, solder and re-insulate ...?
Yup.
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Re: Convert centre positive battery pack into centre negative?

Big Bob
2 posts
Thanks for that extremely concise and to the point answer!