It's no secret that Stevie played his amps cranked and preferred a little cleaner sound from the front end allowing you to hear more power tube breakup. Well, this works really well with the Budda Verbmaster amps too! This kit uses a JJ 5751 for V1 which is in-between an ECC81 and an ECC83S in gain, an ECC81 to replace the 12AT7 in V2 and two ECC83S's one being current balanced for the phase inverter in V4 along with a JJ 5U4GB rectifier tube and a matched pair of JJ EL84's for power. 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.