This is a parts repair amp. I just picked this up in a package deal and was told tubes were good. The person I got this from always says how it is and never lied to me yet so I believe they are alright. I have no way to test them. # bottom are 6lf6 top 3 are 6lb6 and the 2 drivers I think they are 6lb6 but look a bit smaller than the other 3? I got 2 other smaller tube amps and they work fine from same package deal. Asking $150 plus shipping cost. It is a little heavy. Amp won't key up. i replaced the 2n2222a and still no key? I know nothing about tube amps.