|
Hey not sure if anyone is still tuned in to this one but
Spent most of my afternoon fixing up the u911.
1) external degausser after orienting the set east-west
2)removed both converg. and purity yokes and centered the deflection yoke.
(turns out that was what was wrong after all. I couldnt get perfect red purity before)
3)started from the beginning(worst setup ever, plus one frozen coil i almost destroyed)
4) now it's about 95percent done and looks pretty good for what it is. no glaring problems, ready for prime time.
and lastly, most importantly, 6JE6 cathode stabilized at about 190mA but the adjuster still has wide range. I chose this because the tube tested near new Gm and it seemed to be the sweetest spot of operation point.
pics later
|