paul j h Posted April 12, 2014 Author Share Posted April 12, 2014 Right, I have had another go at problem solving, I have tried four different leads and its still makes a humming noise when the drive is engaged, I have tried this with the bass and without With no lead in at all there is no difference if you have the drive or not. So its not the leads, it can be the bass? cos it makes no noise on two other amps. So is it the tube like the nice man from Ashdown suggested, if so any recommendations of 12AX7 tube to use? Quote Link to comment Share on other sites More sharing options...
12AX7 Posted April 12, 2014 Share Posted April 12, 2014 Get a JJ ECC83S - It's the best value for money tube out there IMO. Quote Link to comment Share on other sites More sharing options...
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