07-19-2018, 05:13 PM
(07-19-2018, 04:53 PM)loepke72 Wrote: 700 ohms sounds more like the DC resistance. The impedance is probably more like 7000-8000 ohms plate-to-plate. It's not overly critical, just don't get too far away from this value.
I think I've forgotten everything I use to know. How would I determine the input impedence? Plate voltage is supposed to be 273V, 15W output, 700Ω DC resistance?