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Thread: Tube Amp Problems

  1. #1

    Default Tube Amp Problems

    Just wondering if there is anyone out there that knows of someone that can"service" an amp?

    I have a 60W Fallen Angel Tube Amp and all of a sudden it stopped making any sound. The amp itself powers up and the front panel is illuminated and the cooling fan also works.

    I replaced the tubes but this has made no difference. The tubes are not lighting up at all.

    Any advice or recommendations welcome.


  2. #2
    Join Date
    Sep 2008


    My son's Blackstar stopped working recently. It was out of warranty. The valves were checked and were fine. Problem was the circuit board which is not a DIY fix for most of us. Dealer sent it off to Blackstar and it cost a reasonable 45 for the repair. It is sounding great again. Back in the day when I was a drummer, both guitarists in the band got their Marshalls ands Fenders repaired/modified by Dennis Marshall in Dunfermline. He is also name checked in glowing terms on the Aberdeen Music website. A long way to go but if you are in the area then it is worth a detour. He has a website.

  3. #3
    Join Date
    Oct 2005


    If you are confident with electronics have a look here for a self diagnosis -

    If not there is a guy that sub-contracts from Inverness Music Station who fixed my last tube amp - 01463 225523.

  4. #4
    Join Date
    Nov 2004


    I suggest you look at the transformer. Sounds like the HT (my old term for high voltage) side has gone. If its not that it may be an internal fuse or the rectifier. Have you checked all the fuses ? Thre may be a separate one on the HT side.

    Green but not brainwashed

    Using the sun to provide hot water.
    Driving a car that gets 73 miles per gallon.....

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