Hi there,
A friend has just purchased a new Hum Debugger and it has arrived with a 110v/60Hz PSU – not ideal. I have a collection of _similar_ PSUs that can output 7.5v 400mA, but the tip connector is not the same (does not fit). Can I use this and replace the tip with one on the original US EHX Hum Debugger PSU, or would this be a grievous mistake?

I’ve been able to find a unit on Reverb (https://reverb.com/item/30889615-electro-harmonix-hum-debugger-power-supply-ac-adaptor-uk-version-new-with-full-warranty)

NZ standard mains power is 230V at 50Hz. I am guessing that a UK EHX PSU (like the one shown above) will output a slightly higher mA output (418mA vs 400mA) and that this should not pose much of an issue. If I can safely bodge together a solution with what I have to hand, then I am all for trying it, but I am keen not to let the smoke out.

I look forward to hearing from you. Thanks!