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  • #16
    In the lack of any high voltage Uce transistor on shelves I used couple of series zeners in the top. The relay had on hand works perfect controlled operation at 380V please. The zener dissipation is 0.5W around which makes 5w zeners suitable for the job.


    Click image for larger version Name: 20250228_143123.jpg Views: 0 Size: 717.9 KB ID: 1011191
    Last edited by catalin gramada; 02-28-2025, 11:37 AM.
    "If it measures good and sounds bad, it is bad. If it measures bad and sounds good, you are measuring the wrong things."

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    • #17
      Power module

      Click image for larger version Name: 20250301_161527.jpg Views: 33 Size: 422.4 KB ID: 1011227
      Last edited by catalin gramada; 03-01-2025, 01:17 PM.
      "If it measures good and sounds bad, it is bad. If it measures bad and sounds good, you are measuring the wrong things."

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