This is our Standard Retube Kit for the Bogner Goldfinger 45 Heads and Combo Amps. It uses an ECC83S in V1, a standard Long Plate ECC803S in V2, a current balanced ECC803S in V3 for the phase inverter, an ECC81 in V4 and a standard ECC83S in V5. The default power tubes are a matched quad of the JJ 6V6S's.