The SYclotron, Revisited
Lessons learned from some preamp designs with this topology take the performance to a pretty decent level.
The Red Light District: A 15W Push-Pull Amplifier
What happens if you take a traditional EL84 push pull design and optimize it for overload recovery? Light will be shed on this issue.
The SYclotron
The original SYclotron phase splitter. I’ve refined it over the years, and the current version can be found in the Equal Opportunity Preamp articles at Linear Audio. Basic topology is still the same.