If you want to try a tube amp PrimaLuna is an easy way to go. They sell integrateds which have 4 preamp tubes and 4 power tubes, not too complex but it still allows for trying different tube combinations (known as tube rolling).
The power tubes are continuously autobiased. The biggest problem with tubes for the beginner is biasing power tubes. With a PrimaLuna, and some others, you don't have to do it, the integrated does it for you. This also keeps it sounding its best, reduces wear on tubes, allows you to use different types of power tubes (e.g. EL 34s or KT 88s) and makes matching power tubes less important.
PrimaLuna has received tons of awards and great reviews, just google them. They are built to last and are not expensive.
PrimaLuna is a great place to start with tubes. Once you become a little knowledgable about tubes you may want to try something more esoteric or expensive. That's my 2 cents.
The power tubes are continuously autobiased. The biggest problem with tubes for the beginner is biasing power tubes. With a PrimaLuna, and some others, you don't have to do it, the integrated does it for you. This also keeps it sounding its best, reduces wear on tubes, allows you to use different types of power tubes (e.g. EL 34s or KT 88s) and makes matching power tubes less important.
PrimaLuna has received tons of awards and great reviews, just google them. They are built to last and are not expensive.
PrimaLuna is a great place to start with tubes. Once you become a little knowledgable about tubes you may want to try something more esoteric or expensive. That's my 2 cents.