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Hummer

Discussion in 'Amps and Cabs [BG]' started by Luckydog, Jun 22, 2003.

  1. Jun 22, 2003 #1
    Luckydog

    Luckydog

    Dec 25, 1999
    Last night on way to a gig, I drove over a huge bump. The giggage in back of truck went airborne a few inches, then dropped back into place. Got to gig and set up, turned power switch on SVT tube head, waited for a few minutes, then turned off standby. Immediately got a very noticeable loud hum, sounding just like a bad ground. Changed elec outlets, got same result. Switched the polarity back and forth, no difference in hum. After a few minutes with power on, the hum reduced, then disappeared completely. I'm thinking that when the head was bumped during the drive, it knocked a tube or something loose. Any ideas what it might be? Oh, and I checked it again today. Same thing happens with the hum.
     
  2. Jun 22, 2003 #2
    Tyler Hole

    Tyler Hole Guest

    Dec 14, 2002
    San Luis Obispo, California
    Probably something knocked loose...only thing I could think of, or you damaged it some other way...anyways, might wanna take it to your local music store and have them check it out. good luck with it ~ Tyler:bassist::bassist: :bassist:
     
  3. Jun 22, 2003 #3
    Obsolex

    Obsolex Guest

    Nov 17, 2002
    Hm...
    I don't think that just SOMETHING is knocked loose... But maybe one of your tubes took a significant amount of damage. Just check your tubes, make sure they are all the way on, and there are no holes or anything...
    But other than that, just kind of inspect damage to it, wait for more responses, or SEARCH.
    If all else fails, take it to your local store, but if like mine, they will tell you that you need some expensive part that is hard to find and that THEY have... good luck man...
    ||_-soto-_||
     
  4. Jun 22, 2003 #4
    Luckydog

    Luckydog

    Dec 25, 1999
    OK, I opened the back grill, and used a wooden dowel to carefully push each tube into its slot. Fired it up and no more hum! Cheap fix! Now I just gotta watch those bumps!
     
  5. Jun 22, 2003 #5
    Obsolex

    Obsolex Guest

    Nov 17, 2002
    Yeah man, thats good... I'd always check the tube if I had a tube amp...
    Now you don't have to pay your local store (unless it's GC (usually)) a ton of money to push in your tubes :D :oops:
    ||_-soto-_||
     
  6. Jun 22, 2003 #6
    Piezoman

    Piezoman Guest

    Nov 29, 2002
    Bronx, New York
    I thought this was about the ill H2 :( :( :(