31-08-2022, 04:34 PM
Output valves in their time were run at top (or nearly so) ratings for a large advertised output, nothing wrong with upping the cathode resistor to give it an easier time unless you want ear shattering volume. Also saves the electric, so expensive these days. I put a resistor in series with the volume control sometimes to make it more usable too.
I want a PNP valve!
