Thank you for the comments,
Damn, I see that I uploaded the wrong file, sorry for that.
Here is the correct schematic for the Ampeg.
I also mixed up the models, there was a version with tremolo only (SJ-12R), and then the version that I had (SJ-12T) with both tremolo and reverb. My amp used...
I have a pair of PT/OT from an old 50W Ampeg SuperJet SJ12R (which used 6L6 tubes).
Would it be possible to use these transformers for a 5F11 build with 6L6 tubes?
I don't have the specifications for these transformers, only the schematic for the SuperJet SJ12R.