preamp get hum when volume is at full or 80 % .even when thier
is nothing connected to the amp ill still get hum i know its the tube but iam not so sure on how stop it also if i keep the volume at 50% and hook up anther opamp again to make it louder the hum still can be heard is thier away get the hum to stop????
is nothing connected to the amp ill still get hum i know its the tube but iam not so sure on how stop it also if i keep the volume at 50% and hook up anther opamp again to make it louder the hum still can be heard is thier away get the hum to stop????