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Old 9th January 2021, 07:31 PM   #1
jerkbag is offline jerkbag
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Join Date: Mar 2010
Default Transformer Lamination Ground -- Sanity Check

Hi All -- I have an Edcor Power Transformer on my tubelab se that has been buzzing, and based on advice in another thread, I removed the end bells, and placed popsicle stick shims between the laminations and the bobbin on the top and bottom.

When I put everything back to together, I no longer have a connection between the laminations and ground, as I did before. I still have it in the OTs, and I still have it on power transformer mounting screws.

Everything works fine (and buzz is gone!) but have I done something dangerous? What are the risks of the laminations not having a path to safety ground. If I touch the transformer to see if it's hot will I get zapped?
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