I've used a variety of amps, both on 110 and 220v. For the price and ease of use, I think the Ameritron AL-80B is hard to beat. Small, easy to operate, runs fine on 110v with a single 3-500Z and gets 1KW PEP. My 2 cents. Jon Hamlet, W4ZW Casey Key Island, FL "A little bit of Paradise in the Gulf of Mexico"