WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
Rectifier datasheets often specify minimum plate impedances, but can I get away with using one big resistor after the rectifier (but before the first filter cap) instead of putting two resistors on the plates? Like so: