The idea for, and basic design for the Cherry Bomb is Tom Perazella's. He was trying to replicate the concept and performance characteristics of Dave's SET 300b amp. That's the reason it's choke loaded (Dave's 300b is choke loaded). The transistors curve traced very similarly to 300b tubes, and he thought it would be fun to see how close they could make it sound to the 300b amp. Dave did give great assistance in tweaking/testing/designing and getting it up and running without blowing those unobtainable transistors.