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 Magnatone amps too! It contains a JJ 5751 for V1, an ECC832 for V2 and a current balanced ECC83S for the phase inverter in V3, a GZ34 rectifier tube and the default power tubes are a matched pair of the JJ EL84's but you can configure this kit to use the JJ EL844's by clicking on the "Customize" button!