The input wiring section was intense!
Managed to complete it though. All the resistance and voltage values checked out so I hooked it up to my Roksan K3 amplifier and started playing music through it
Thank you everyone for the guidance throughout and helping me make my first tube amp kit a success!
May I ask what the balance knob is for? In what instances, besides DJ-ing, would one use it to make one channel louder than the other? This is the first time I've had a balance control at my disposal and it's giving me anxiety because I don't know if I've balanced it perfectly equal between left and right channels