Nearly finished rehousing this old combo head. Someone on Basschat offered it for free (!) in the recycling section here a while ago. I can’t find the messages to name drop them and thank them again.
12mm ply, original knobs were missing so put on this hideous set. Just got to find screws to hold it in to the case now.
It was supposed to have some sort of fault, but after a quick poke around and reseating the power amp to preamp cable, it works beautifully!