I'm looking, I can't seem to locate a schematic.
I was also looking at the AX84 SEL, a single ended high gain, 6 Watt amp.
Here's a link:
http://www.ax84.com/sel.html
Many options on the power tube.
This one shpws a KT88, a good one to use.
I need to look closer at AX84...I kind of got an initial impression of a bunch of Fender Fanboys, but if you dig deeper, there's some cool (crunchy) tones to be found.
El Duetschlando scares me. Support might be a problem.