Nice Tube Combo used by 2 hard gigging Frome Bands: The Bad Detectives and Magic Tractor in for a service as she fades away….Nice bias adjust point and test.. but test is actually only the bias voltage.. does not tell you how much current the tubes takeNeat Chassis2x6L6 power tubesSingle large PCB.. still neatHad to resort to my bias probe to get the bias right. Following Bugera instructions leaves these tubes biased too hot (probably the cuase of the fade after used for some time..). Reduced the bias to give the correct dissipation now sounding sweet!!All finished and sounding great!