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Thread: Tingle from homemade projectors

  1. #41
    Join Date
    Aug 2010
    Location
    London or Spain depending on the weather
    Posts
    1,381

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    He's right there.... if you do it will be you who starts to buzz not the trafo !

    Cheers

  2. #42
    Join Date
    Dec 2007
    Location
    NorCal / Western Caribbean
    Posts
    710

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    Si I never actually got round to ordering any isolation transformers but with further investigation it seems like unfriendly buzz is coming form the switch mode running the scanners.

    I've got a shipment heading out to me fairly soon so I will look into the iso-trans again.

    Cheers
    Rich

  3. #43
    Join Date
    Oct 2010
    Location
    Athens, Greece
    Posts
    1,931

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    i got the same once with a 24v smpsu powering a set of scanners, when i left the ground terminal not connected
    when i connected it everything was ok.

    so, i'm afraid we go back to the grounding issue. now, where is that dog?
    "its called character briggs..."

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