hello! My name is Thomas (sm7tvj) and i run a homebuilt QBl 5-3500 on 10-160m its not built by me,But i am in the learning process.A quick question,glitch resistor? what value should i have? 4500v on anode. And filament filtering,(choke)what about that? needed whith this tube? Best regards from a cold sweden –12 degrees and 20cm snow //Thomas