[codefox1]

Thanks for listening to my rant. I pretty much like to start with some good "iron" preferably a pair of outputs identical or nearly so, a beefy power transformer, and a chassis big enough to hold everything, and a typical well discussed plan from the 1950's or 1960's using still relitively inexpensive and available tubes.

Sure cure for pesty harmonics is a very small value capacitor with a very large voltage rating across the primary of output transformer very neatly dressed. But you probably know that already, yes?