Another pv shit the bed…

  • Thread starter Thread starter JackBootedThug
  • Start date Start date
Is anyone familiar with the pre amp tube assignments in the ultra plus series? I think v1 and v2 are for the gain…v3 is for the loop and verb and v4 is the pi? Maybe 🤔?
 
Suggestions on diagnosing the hum? Think I’ll start by isolating the amp power wise from everything else and see if that helps….
 
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