Time for a a guest appearance. Sebastian sent me some interesting layouts that might interest some of you. Here is what Sebastiam says about it.
The best-sounding amp I ever played through was a friend's Miles Platting 100W head (made by Wilsic Sound during the 1970s in Doncaster, England), which was basically a Bassman preamp going into a Marshall power section. So I did a JFET translation of the preamp and grabbed the "power section" of the model feT and voilà, a Miles Platting-in-a-box.