If I use a transformer for my 120V guitar amp, then plug in my guitar, will it screw up my guitar? The outlets in my house are all 220V.
No, you will be fine
Make sure the output of the transformer is 100-120V. It is what your amp will be receiving. You plug a 110V amp directly into 220V and you will fry it.
Last edited by hminh87 at Feb 17, 2013,