Found a good deal on a 1x12" version of a Vibro Champ cabinet and had a few ideas and ran with them. There is no dedicated phase splitter, the 6v6s are self inverting. You only need one preamp tube and can still have push-pull operation without a splitting transformer. Early Gibsonette amps used this style of push-pull. This version is hum cancelling like typical push pull and operates in class A only. There is lower power output due to a number of things, but is equivalent to a parallel single ended amp without the need for a huge single ended transformer. There is also more harmonic content than typical push pull due to slight imbalance but it is a very sweet sounding amp.