humming

Hi everyone. Hoping to get a bit of advice on my amp head, which started humming a few days ago. I'll try and give as much detail as possible to help diagnose. - It can be heard slightly when on standby then loudly through the cabinet when standby switched off - Volume controls make no...

Ello all, I have had some Ibanez Hot Grinders from an Ibanez S Prestige fitted to my Ibanez S470. Now the guitar hums when I am using a lot of gain. NOTE: This only happens with the bridge pup. If I take the cover off and put my finger on the jack socket the hum completely disappears, if I touch...