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How to remove the coil from the magnetic circuit. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies

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When removing a coil from a non-separable steel magnetic core (the plates of which are riveted or welded with a transverse seam), one often encounters the fact that its frame “sticks” tightly to the metal. Attempts to use force usually lead to frame breakage.

In many such cases, heating the magnetic circuit helps. To do this, I use a ninety-watt electric soldering iron to heat the magnetic circuit from the protruding end and periodically try to remove the coil from it. Having warmed up to the desired temperature, the magnetic core gently comes out of the frame.

Author: N. Kashentsev, settlement of Liman, Astrakhan region

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