Fixing a board and adding some oscillograms.
I quickly made enough fixing to start a board.
Without signal input I got this:
Ok, capkit this first and we will see.
After partial capkit (not replaced snapins and the orange one yet) , adjusting B+, feeding my grid signal:
The monitor is junk hence mis-alignments. But the board is really good.
Time to add shape of the signal from strategic points to understand better the schematic.

