I found another beat up old radio console to salvage on craigslist recently, an admiral 9B15 for $10. It was a single ended 6v6 amp and while the cabinet was in rough shape, the only thing it was missing was the speaker. I got all the tubes, including a grey glass 6v6, a 5u4g, and a 12sq7, along with a bunch of 7 pin rf tubes that I probably can't use for anything. I figured it was worth buying just for the tubes, but I've also got a PT, OT, and a choke and even some nice sockets. I've started thinking about what I could build with all of this and came up with an idea for a single ended, octal preamp tweed Princeton inspired thing. Here's my first draft of a schematic: As always, comments and suggestions are welcome!