I had a thread going about the layout and design, but figured I'd start a new one now. After the weekend, only thing left to do was install the transformers that came in today. So, I did. New tubes are in the mail, but I pulled everything out of my 5e3 to try it out. 325v secondary PT biased around 65% here @ approx. 380v B+ I think. Plate to cathode was 375v I know. I think the B+ rail went 380v, 375v, 300v and the V1 cathode was 1.5v. A 5u4 is on the way, but I'll just have to see where that ends up. I plugged into a cabinet with my old Warehouse Veteran 10 from several years ago. The lowest powered speaker I have right now, but it sounded pretty dang good. It stays pretty clean up to the 7-8 range, then the overdrive really starts to kick in. Even on 12 it stays together really well and doesn't get too mushy. I just went and checked, and the last time I turn it up for the video takes it to 12 until the end -- that's where the knob is since I turned it off. Chassis is open & face up toward fluorescent lights, but still pretty quiet considering. I can't wait to try it through a stronger speaker & with my Les Paul. I have to redo the input jacks, but I'm 99.9% sure I know what is wrong and was grounding it out. Going for a single/parallel Marshall style, but one was dead silent until I clipped the jumper, now both are identical inputs and both work fine. Hammond 290AX PT, Hammond 1750E OT.