Strange overtones on Low E notes

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by RPFSingleCoil, Jan 31, 2006.

  1. RPFSingleCoil

    RPFSingleCoil Member

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    I'm experiencing some unpleasant under tones when playing notes on the Low E clean through my 66' BFPR.

    Does anyone have any thoughts or experienced similiar scenarios?

    thanks

    Robert
     
  2. sixstringslut

    sixstringslut Member

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    Just for curiosity, try a different guitar, then maybe different speaker cab, then try the usual tube swapping. This could take awile to find. Be patient and try to rule out as many variables as you can.
     
  3. Dave C

    Dave C Gold Supporting Member

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    Try all of sixstringslut's suggestions first, any one of them could cause what you're hearing. If after all of that ...the problem still persists......how long has it been since your amp has had a cap job ? Filter caps starting to fail can make all kinds of funny sounds and ghost notes. Just a thought, hope it helps.
    Dave C
     
  4. RPFSingleCoil

    RPFSingleCoil Member

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    Thanks guys,

    I had the amp serviced by David Allen about a year back. He replaced the Can Capacitor and did a few other adjustments. I'll try swapping out a few preamp tubes and the speaker cab suggestion.

    Robert
     
  5. Blue Strat

    Blue Strat Member

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    Is that a Princeton or a Pro Reverb?

    Ditto on the above comments, especially the cap job.
     
  6. RPFSingleCoil

    RPFSingleCoil Member

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    Hello Mike,

    It's a Princeton Reverb. Have you changed any Can Capacitors? Do you have any NOS Cans?

    Rob
     
  7. Curt

    Curt Member

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    You might see if lowering your pickups helps.
     
  8. Blue Strat

    Blue Strat Member

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    I've changed many. You don't want NOS electrolytic caps. You want NEW ones. AES has the can you need.

    Also, don't expect much clean out of a Princeton, above 3 with humbuckers they break up, above 4 and the distortion isn't particularly pleasant. Modding the amp can help.
     
  9. AaeCee

    AaeCee Member

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    That was my first thought. Single coils? Could it be the dreaded 'low E warble'?
     

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