If you want to find more info, search "Randelli" as the user name. Randy Peterson. He was quite active in the Squawk Box. He gave away the plans, parts list, and instructions for building a 20 W 6V6 (or EL-34) amp design. I built 2 of them, one 6V6 and one EL-34. He was VERY encouraging to a bunch of us building his amp designs.
I was visiting him at his house while he was burn-in testing the Rude Mood amp that went to River. Besides ErictheRed, Mudfinger also had a Rude Mood, with a matching Deluxe sized external cab. It was cool because you could get "Fender" style cleans AND Marshall-ish Crunch at the same time, and with varying "blend" just through pick attack.