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A comment on The Magnetic Amplifier – A Lost Technology of the 1950s. Parent comment

Re:The Magnetic Amplifier – A Lost Technology of the 1950s by pjc50 on Thursday June 18, 2020 @04:37AM (#23561067)
The low-frequency operation means this will be quite low, and below the 250kHz lower threshold that most EMI testing cares about.
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