Wombat

* (1) 12ax7, (1) EL84: Class A Single Ended, cathode biased (no biasing required)

* 4W, 1/2W modes

* Gain switch:

1: Like plugging into low input

2: Normal.  Clean to breakup

3: More preamp volume and breakup. More bass.

* Volume: Volume into power amp. Higher is more power tube drive

* Bass / Treble:  Higher treble settings will change the character and amount of drive in the preamp.  The EQ is Blackpanel-style for Fendery cleans