05-12-2020, 09:19 AM
I'm not entirely sure how this affects the B+ but the choke coil has some inductive reactance to the pulsating DC, adding to the resistance. Therefore, if the choke coil is 1000 ohms you can use a 1200 to 1500 ohm resistor to replace it. You should be able to use the replacement resistor to tweek the B+ without much adverse effect.