Complete explanations and calculus are there:
https://robrobinette.com/RobinetteBox.htm
not forgivnig the output transformers for tube amps problem:
https://diyaudioheaven.wordpress.com/tutorials/power-amp-adapter/
https://robrobinette.com/RobinetteBox.htm
not forgivnig the output transformers for tube amps problem:
https://diyaudioheaven.wordpress.com/tutorials/power-amp-adapter/