The stock circuit uses the same tube compliment as a Champ - 1 12AX7 preamp tube, 1 6V6 power tube, and one 5Y3 rectifier tube. Controls include on/off toggle, volume, and tone.
The correspondence I've had from the customer has been great. He has been using the amp a lot and just loves it. Here are some comments from him:
"I am so happy with how it sounds. I have obviously only had a chance to play it alone in my house (making my wife wince with the volume), but it is sounding exactly how I'd hoped. I am particularly impressed with the variation that you get between the two inputs - I am thinking of experimenting with an a/b switch that I have, running a channel into each input and switching them that way. "
"The pull-boost feature is awesome too. With that thing pulled the amp can become a real fire-breather real fast! Just the kind of tone / size / everything that I was hoping for. When I get the chance to gig with it a little bit I'll drop you another update.
Again, I am really really happy with it, Morgan. Thanks again for all the time and effort that you put into building this for me."