RANDALL RG50TC HELP!!!!

[legend]

Recently bought it off bay RANDALL RG50TC ,at first everything seemd fine however later on everyone when it was used for more than 20 minutes it would randomly buzz no matter what channel.

Anyone know what the problem mite be ? ,this is my first tube amp so don't really know much about these

Your help appreciated

THANKS!!!!!

[Thomas Welch]

You are going to need a good amp tech. A good going over by a qualified professional should easily find this and any other potential problems.

[Thomas Welch]

Of course I am assuming that all of your cables are making good connection and the guitar has a good jack in it.