For a Fender PA 100 head? I'm not looking to go boutique. This heads going to be gigged, so solid all round tubes is what in after. My first thoughts were some JJ 6L6GC's and Tung Sol 12AX7's. I'm guessing I can substitute them for the 7025's also. But I don't know what's good in the 12AT7 line? Ta!