I have a Mesa Walkabout head, silverface, in great condition that I'm looking to trade for a 70s Ampeg v4b head. Other than some minor scratches on the top of the head, its in excellent condition. All the pots are smooth as butter and the amp sounds amazing. I got this amp from a fellow TB'er and he had the upgraded, quieter fan installed. It's dead silent. I'm located in central New Jersey(07720) if anyone wants to do a local deal, but I'll ship also.