I had the pleasure of repairing/restoring this old trooper on the weekend and playing it for a few days. Just thought I'd share. It had a solid state rectifier in it, but previous to that the socket was wired for a 6X4

and adhesive labeled on the chassis as such. It was also labeled for a 6L6 rather than 6V6... which isn't as surprising. It had a pre-out jack wired in straight to the grid of the power tube with a hole drilled in the chassis

As you can see also the tweed is unfortunately long gone. Shame

Same with the original speaker but there's absolutely NO complaints about this JBL K110. This thing sounds great now. Fixed a bunch of wonky wiring and soldering, recapped it and rewired it back to a 5Y3GT and gave it some other basic TLC. Luckily no permanent damage it seems. I used the hole in the chassis for a feedback loop swtich.
If anyone can give me an idea of it's value given the condition, I'd appreciate it.
Album:
https://imgur.com/a/LYXyArW