28-06-2024, 10:33 AM
My bad. 50% duty cycle UNFILTERED of 19V is not equivalent to 9.5V DC (or sinewave AC), because power is V squared and we want the same power as 9.5V DC.
See http://tronola.com/html/tube_analyzer_yo...dices.html
See http://tronola.com/html/tube_analyzer_yo...dices.html







