Just posting this in case anyone else has a problem. Took my AFD to studio to track some tunes the other night..used a JCM900 cab there. My first time really opening the power section / volume up.
Just could not get enough sustain or gain even on AFD mode. Weird because at home volumes I had almost too much gain.
It didnt sound bad...just more like Malcom Young even with gain almost all the way up. engineer thinks I just need a tubescreamer and I know it doesnt need any boost but I could not solo as strings werent singing for me. At this point, kind of feels like one of those dreams where you find yourself at school or work with no clothes on...but I digress.
Dropped power way down and master up and pushed through session.
Got home decided to recheck it and it was DOA...everything lit up ...no power tube problems... just zero volume.
Did a pre amp tube swap with a spare I had and turns out PI position was bad. Seems back to normal at home volumes with a GT 12ax7M there. Curious to open up volume again see how it is when cranked. Ill keep you posted.
Anyone try Tungsol in V1 or have sucess or fail with different tube trials?