Power tubes are 2 x 7591A, then 5AR4 / GZ34 rectifier (and the rest are 12AU7, 12AX7, a 6BN8/ECL82, 12AX7 and a 6AV6 in that order). The speaker is 8 ohm but entirely unmarked. It probably had a Guyatone sticker on the magnet and was likely a domestic make. Good luck finding a schematic, I couldn't!
No. It's similar in that it has the basic Tele look but with the Jag/Jazz vibrato. It does not have the Jag like pickups like the LG-20 but a couple of compact single coils, ( you can just see part of the bridge pickup). It's a Burns SG-28, (nothing to do with the English Burns). They were made by Teisco Gen Gakki in the last few years of the 1960s for a music store in Tokyo. Hunt around on my channel and you'll find a demo somewhere. The Burns range included other shapes too. I REALLY like them!