Tube Amp Archive

I finished my build, but I'm not getting any sound until the 9 oclock position on the potentiometer. I get cleans from 9-12 and breaks up after 12 to max. Is this normal?

I'm building a 5f1 champ as a head using the ceriatone layout . Why is the nfb only connected to the 4 ohm tap on the impedance selector? I'm omitting the impedance selector and just using 3 output jacks. Is it essential to use shunting jacks? Is it bad to use an iec inlet with an integrated fuse ho...