My 3rd Rail 5e5. It's capable of taking 6l6s or 6v6s, currently setup with 5881s. I like 5e3s, but I've always liked 20+watt, 6L6 powered fenders with a 15" speaker. The 5e5 (not the "a") is essentially a bigger 5e3 with a 15, trouble was finding someone who makes one. Brian at third rail offered "pro-lux" style 5e3s that ran other power tubes, and that was who I went through to get mine. Great guy to deal with. Running a Weber DT15. Wanted something deliberately inefficient, and it seems to do generally what I wanted. I'm not exactly drowning in options for a 15" you can describe as deliberately inefficient.... Embarrassingly, I have not tried to console steels through it yet. House has been tumultuous, and they're a bit to unpack(I could never be a pedal steel guy...). Controls wise, it's a 5e3 regarding pickups, knobs, holes/jumpering. It just sounds a bit different, and I cant wait to gig with it. For the record, 3rd rail and Vintagetone are both able to do 5e5's for reasonable prices.