Right, so I have a cab with Fane Medusa 150s and it seems to be wanting an output valve that is kind of bright, but not so middy, if that makes sense. For those of you who don't know this speaker it is scooped in the correct meaning of the word: the lows are roughly as loud as the mid peak.
The pre-amp is in line with a Fender Blackface Twin and for distortion I'll be running my Xotic AC Plus. The output section is more in line with an 80s Marshall that accepts pentodes and beam tetrodes and has switchable resonance.
Valves that have caught my eyes are:
Tube Amp Doctor 6L6WGCs - seems bright enough and biased hot I'm sure it compresses nicely though possibly too snappy (?) for my purposes. I'm to use this mainly as a rhythm amp and for power chords.
Gold Lion KT77s - I'm using their KT66s biased hot in my lead amp with great success, but their KT77 offering seems a bit grating from what I can tell, but could be wrong.
Tung Sol EL34Bs - Bright enough and biased on the hot side they could probably run smoother than demos I've heard. Not sure though how well the would fare in that amp as even at reasonable bias levels EL34s seem to wear sooner than I would have hoped. Probably the amp was designed primarily for Sovtek '5881's.
Ideas? I'm open to all suggestions, but my financial restraints keep my from buying all of these and/ or possibly others for a trial.