I need to figure how the 80VDC appears on the cathode of one triode, not on the other, and the more important question, should it? My guess is that voltage comes across 3u/150k, but how come it doesn't on the other side?
As said, took everything apart and made it from scratch, from new parts, on new boards, still have a problem on one side of ECC88...
This time I was more than careful and connected exactly everything as it is on the diagram...