I just finished up my first champ kit and have a problem. There is no sound. When i initially tested my build i got a loud ear piercing squeal, Which i read may be due to positive feedback and could be fixed by switching output transformer primaries. After switching them, the squeal went away but i have no sound. Some voltage readings i took are as follows: 12ax7 pin1: 161 pin3: 1.3 pin6: 161 pin8: 1.2 6v6 pin2: 16 pin5: 320 pin6: 285 5y3 pin1: 330 the B+ voltages read 330, 285, and 245 i see a common problem is a missing ground between the 22kohm resistor connecting the 8uf filter caps and the 100k ohm resistors that lead to the 12ax7, but I do have voltage there. I know it could be a number of different things, where should i start?