| 1. | The German Kriegsmarine made extensive use of the magnetic amplifiers.
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| 2. | By the early 1960s most magnetic amplifier efforts were abandoned.
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| 3. | Interest in magnetic amplifiers lasted only a short time through the 1950s.
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| 4. | The magnetic amplifiers were based on tiny magnetic cores with two wire windings.
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| 5. | Magnetic amplifiers are still used in some arc welders.
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| 6. | The principles of magnetic amplifiers were applied non linearly to create magnetic digital logic gates.
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| 7. | One such system was the magnetic amplifier.
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| 8. | Magnetic amplifiers were used in aircraft systems ( avionics ) before the advent of high reliability semiconductors.
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| 9. | Like the magnetic amplifiers, Johnson's design could be used to control several different inputs.
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| 10. | Magnetic amplifiers were used by locomotives to detect wheel slip, until replaced by Hall Effect current transducers.
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