I used #2 mix (red) toroids about 1" O.D. size and #18 magnet wire for each toroid. These will easily handle 100-150 watts of RF at the relatively low impedance levels for a tuned input circuit.
With a 0.68 ohm 1-2 watt resistor in the B+ line, which acts as a "fuse" should a internal tube "flashover" or a parasitic happen, the resistor will explode opening the circuit and protect the PS.
Anode systems should have series-resistance in the anode lead between the filter capacitors and RF choke.
glitch resistors etc
