Thanks, I have that issue. It's on page 26 - the Eckland article about the Williamson circuit. I guess I had forgotten this article as I read the magazine about 6 months ago. This might have been the first issue I ever read; I don't know, but it's an impressive magazine with that article showing the full layout, schematics and the whole nine yards.Vacuum Tube Valley, Issue 19
That issue also has an article by Kittleson with an equally in-depth write-up of the Craftsmen C500 amp with layouts and schematics and everything. There's a good comparison of several tube types too, which I thought was an interesting read. And then, of course, the Maven Peal ad. Gotta love it!
Thanks for reminding me to look this up. That issue is a "must have" magazine for sure. I think maybe I'll have to build one of those amps too.