I just finished building the sparkplug and when I pluged it in, it was really quiet. With the volume cranked even. All the knobs work except the gain knob doesn't seem to make a lot of difference. Also, the D3 LED isn't lighting up. Is the the power on LED or does it do something else? And finally when you flip the toggle switch the D2 lights up but goes between distorting really really bad and cutting in and out. Like its about to blow a speaker. It does get louder though. Please help cause I like the tone but it has to be cranked. Thanks
Chris
Chris