[DaveWM]

just a couple other things, did you check the cathode current with the beam current near zero (if the sams says that way), did you replace the HOT grid coupling cap as part of the total recap? do you have some other HOT's you can try (in case the one you have is a bit gassy) how does the the shunt tube current look (I think that one still used the shunt vs the pulse type). Do you have a scope, if so you can check the PP horz drive or use a VTVM and confirm the neg voltage.