Help with chasis installation

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by kdixon1029, Jan 24, 2006.


  1. kdixon1029

    kdixon1029 Member

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    Couple of questions about chasis' (if thats correct :)
    I have a tremoverb combo and some of the foil above the chasis was worn off durring sanding the cab for recover. Can I replace and or touch up these areas with regular foil?

    Also I believe I may have been getting some "motorboating" noises because the chasis was touching the foil. If I lower the chasis a little with the mounting screws there is a slight gap in the fromt and back from the cabinet to the chasis. Do I need to get a rubber sealer to put around the chasis to keep dirt and debris out?

    thanks for the advice
    Kevin
     
  2. bob-i

    bob-i Member

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    I don't know the tremoverb well, but I'd just replace the foil. If you choose to leave the gap I'd use a washer or some spacer so that it's tight and there's no vibrations. The dust and debris won't harm the amp.
     
  3. Chiba

    Chiba Gold Supporting Member

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    Dust & debris might not harm your amp, but it'll wreak havoc eventually on your pots, switches, and tube sockets. A rubber gasket around the perimeter of the chassis sounds like a good idea to me.

    --chiba
     
  4. 908SSP

    908SSP Supporting Member

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    The chassis is supposed to touch the foil, how else is it going to act a ground if it isn't connected to the ground?
     
  5. TubeAmpNut

    TubeAmpNut Member

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    The foil is for EMI shielding, it has nothing to do with grounding. You can patch it with some copper sticky tape from Stewart Macdonald.

    BK
     
  6. kdixon1029

    kdixon1029 Member

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    Thanks guys,

    I've heard that you need to screw it all the way up till it touches and now I'm hearing its ok to leave a little gap (with rubber gasket). I think I'll wait till I'm finished recovering and try it both ways and see if I still have any problems with the motorboating sound.

    Thanks again.
     

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