EL34 (6CA7) / 807 6SN7GT / ECC40 Williamson Tube Amplifier
Classic Williamson with 2 X 6SN7GT and 2 X EL34, works fine, but it's modyfied with ECC 40 phase splitter and 807 like output tubes.
At the end, my expectings about ECC40 are even over. It's capable to give enough gain for triode strapped 807. It's great audio triode, one of my favourites!!!