Western Electric 422A Vaccum Tube

This is one of the Holy Grail rectifier tubes.  Incredible.  1961 and tests at 105% of new.  Used briefly in my Modwright Oppo Power Supply and it sounds outstanding!  See review below: 
Dubstep girl's massive rectifier review: 
  "This is Western Electric's version of the 5U4G, with slightly different specifications, it should be fully compatible with 5U4G amps (Stratus - maybe, Woo, Decware, etc.). The construction is quite interesting, having the same domino plates and overall build as the Tung Sol 5998 power tubes. Anyways, the sound? This is by far the best tube I have ever owned or heard. My reference tube. As with many of the rare holy grail super tubes out there, they are nearly perfect in every way. Hauntingly beautiful tone, lots of air, great layering, transparency above the rest, and just perfect extension in both the highs and lows, deep bass, palpable, lucid midrange, holographic 3D staging and imaging (like with the WA22 and Glenn OTL, the image is very life-like and out of head unreal good at times), amazing! Overall balance is great as its neither overly warm nor bright, transients and PRaT are as good as they get with tubes (like seriously, beautiful liquid transients!). Out of both tubes I have, I think they both sound pretty much identical, the older grey plate looks a little nicer and might sound a bit better, but they're pretty much the same tube. Price is generally high with singles being anywhere from $400 to 750$."