What is this part? | The Canadian Guitar Forum

What is this part?

Discussion in 'Amp Building/Technical/Repair' started by guitar69freak, Dec 13, 2019.

  1. guitar69freak

    guitar69freak

    Joined:
    Jul 28, 2019
    Location:
    Ottawa
    This is obviously why I’m having issues with this combo amp. What is this part that is leakin? Is this the capacitor and what do I replace it with?
     

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  2. player99

    player99 Gold Member

    Joined:
    Sep 4, 2019
    Location:
    Ontario
    It's a capacitor. Two of them. Take the numbers off the side and google.

    edit: 25v 2200uF but don't take my word for it.
     
    Last edited: Dec 13, 2019
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  3. guitar69freak

    guitar69freak

    Joined:
    Jul 28, 2019
    Location:
    Ottawa
    found this exact same capacitor on eBay, thanks a bunch!
     
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  4. dtsaudio

    dtsaudio

    Joined:
    Apr 15, 2009
    Location:
    Hamilton, ON
    Do not buy your capacitors off of eBay. The chances of them being cheap fake parts are very high.
    Also it might be a good idea to find out why they failed before you replace them.
     
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  5. greco

    greco Gold Member

    Joined:
    Jul 15, 2007
    Location:
    Kitchener, Ontario
    Pay attention to this advice. Dan is a professional.
    If the amp is worth it, take it to a tech.

    It feels like we are going in circles here.
    What are some causes of feedback?
     
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  6. Milkman

    Milkman Gold Member

    Joined:
    Feb 2, 2006
    Location:
    Brantford, Ontario
    I like the idea of taking it to a tech.

    I spent my spare time one winter a few years back, building tube amps from kits.

    I was able to follow the diagrams and have decent soldering skills so the amps worked.

    BUT, honestly I had and still have very limited understanding of what the individual components do and what to look for if anything went wrong.

    I learned some things in the process, but I'm now taking one of these project amps to a skilled technician so he can ensure it's safe and fully functional.
     
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  7. guitar69freak

    guitar69freak

    Joined:
    Jul 28, 2019
    Location:
    Ottawa

    Where is a good place to buy capacitors and other electrical parts?
     
  8. knight_yyz

    knight_yyz Gold Member

    Joined:
    Mar 14, 2015
    Location:
    Hamilton, Ontario
    Digitech or Mouser
     
  9. jb welder

    jb welder

    Joined:
    Sep 13, 2010
    Location:
    Melonville, Canada
    That is glue holding down those caps. If they were bad enough to leak, they would be domed on top.
    You can see that the goo goes up the side of the cap, leakage won't do that.
     
  10. KapnKrunch

    KapnKrunch Gold Member

    Joined:
    Jul 13, 2016
    Location:
    Yes
    Lol. Technically, it's not a technical thread until JB checks in.
     
  11. greco

    greco Gold Member

    Joined:
    Jul 15, 2007
    Location:
    Kitchener, Ontario
    Visual assistance for educational purposes.
    Reminder to self..Fluids don't often flow uphill.

    BTW...Are we still going in circles re: feedback...cause and solution?
    Screen Shot 2019-12-13 at 3.34.14 PM.png
     
  12. davetcan

    davetcan Staff Member

    Joined:
    Feb 26, 2006
    Location:
    SW Ontario
    Well the board could be mounted upside down ....................
     
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  13. greco

    greco Gold Member

    Joined:
    Jul 15, 2007
    Location:
    Kitchener, Ontario
    This is exactly why they pay you the big bucks.
     
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  14. jimsz

    jimsz

    Joined:
    Apr 17, 2009
    Location:
    Surrey, BC
    Looks like glue to me. Don't see any corrosion on the board. Can they be tested?
     
  15. dtsaudio

    dtsaudio

    Joined:
    Apr 15, 2009
    Location:
    Hamilton, ON
    JB is probably correct. Looks like glue. One thing i do see though is the jacket on the cap nearest the rectifier is deformed around the middle a bit. That may be glue as well and just a visual issue. But i would check just in case.
     
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