Want to tame the gain in Nomad 45 for a great Blues tone? This kit contains a matched quad of the JJ EL84's along with an ECC83S for V1, 2 ECC832's for V2 & V3, an ECC83S for V4 and a balanced ECC83S for V5 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.