| 21. | The rotor's magnetic field may be produced by permanent magnets, or by a field coil electromagnet.
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| 22. | START had six poloidal field coils within the vacuum tank and were encased in 3 millimeter stainless steel cases.
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| 23. | The area between the two field coils is filled with an analog of the original signal from the antennae.
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| 24. | Varying the amount of current through the stationary exciter field coils varies the 3-phase output from the exciter.
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| 25. | The field coils now moved into short, squat " internal " coils around the pole pieces themselves.
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| 26. | A "'magneto "'is an electrical generator that uses field coils rather than permanent magnets.
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| 27. | On larger machines the constant magnetic field is provided by one or more electromagnets, which are usually called field coils.
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| 28. | The 18 Toroidal Field coils at max field of 11.8 T will store 41 GJ ( total ? ).
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| 29. | In a rotating machine, the field coils are wound on an iron magnetic core which guides the magnetic field lines.
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| 30. | Above and below this chamber there were two series field coils surrounding and energizing the two poles of the magnetic circuit.
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