A friend at a hifi shop sold me his old "Jensen's" FET-5 Mark-2 in, I think, the mid-70s. Well constructed, lucid and musical - everything a dyna could be if properly constructed. That same chassis has been upgraded a couple of times, and is still in daily use as part of the HT.
I also used to be an avid AB reader, and actually tried out several of Frank's mods and tweaks.