12ax7
Super Member
You're probably tired of taking it apart and reassembling it but try cleaning all of the lubricant off of the tube and plunger and see how it operates. If the arm drops quickly, it's a lube viscosity issue. If not, there may be a problem elsewhere. I've had repairs where it called for 300,000 wt oil, but after a thorough cleaning I've had to go as low as 30,000 wt to make it operate properly, mostly on C.E.C. made tables. That's what I was alluding to in post #9 about different manufacturers weights not being the same, although that's an extreme example. You can mix weights also.