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Thread: Power Amplifier Repair

  1. #1
    Supporting Member Jazz P Bass's Avatar
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    Power Amplifier Repair

    If you feel the desire to work on amplifiers, solid state or tube, these links are must reads.
    Electricity can kill you.
    Hazardous-voltage primer
    Attached Files Attached Files

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  2. #2
    Old Timer J M Fahey's Avatar
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    Incredibly useful post.
    Reading and answering some questions about it should be mandatory on *any* hands-on building, servicing or modding Forum
    Thanks.
    PS: I have been tickled by as low as 24VDC , when covered in perspiration on a very hot and humid summer working on a basement which should have been labelled "Sauna".
    Itīs not a typo, 24 VDC from a storage battery .

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  3. #3
    Supporting Member Jazz P Bass's Avatar
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    9 volt battery

    What?
    Did you not ever test a 9 Volt battery with your tongue when you where a kid?
    My take on the links was 12 mas of current can stop your heart.
    Kinda scarey.
    At the same time it teaches you to respect electricity.
    It must have been a hoot when the first experimenters where messing with this stuff.
    "Hey! What's that smell?"
    "It's o/k. Just my flesh"

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  4. #4
    Lifetime Member Enzo's Avatar
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    I quit tongue testing the things decades ago. My meter is handy.

    And there are higher voltage batteries that resemble the 9v ones. You DON'T want to tongue a 45v or 90v battery.

    45 volt battery - Shop sales, stores & prices at TheFind.com

    RCA B battery 90v

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    Education is what you're left with after you have forgotten what you have learned.

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