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Keep in mind the fusistor is only on the B+, not the tube filament string. I'd guestimate something around 200-300 mA of current.
Also the reason for the resistor is that the old rectifiers can't take the surge current. Modern are more robust especially if you go with 1N5408s. The resistor value isn't critical.
I also suggest adding another fuse to protect the whole set.
Last edited by bandersen; 06-27-2017 at 02:41 PM.
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