Want maximum gain from your Blue Angel? This kit contains a pair of JJ 6V6S's and a quad of JJ EL84's for the power section. For the front end two handpicked High Gain JJ ECC83S's for V1 and V2, two standard ECC83S's for V3 and V4 and a balanced ECC83S for the phase inverter in V5 and a JJ GZ34 rectifier tube. Just let us know in the comments section if you're looking for an early breakup, a moderate breakup or a later breakup for more headroom in which case we will choose the coolest grades we have available for the power tubes.