Looking for a vintage vibe with FAT mids and a real sparkle? This is the ECC803S V1 Option Retube Kit for the Hughes & Kettner GrandMeister 36 and Grandmeister Deluxe 40 Heads. It uses a Long Plate ECC803S for V1 along with two ECC83S's with one being current balanced for the phase inverter in V3. The default power tubes are a matched quad of the JJ EL84's.