| 1. | Development of thyristor valves for HVDC began in the late 1960s.
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| 2. | A thyristor is not a proportional device like a transistor.
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| 3. | G, the thyristor can be switched into the on state quickly.
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| 4. | A SIDACtor is another thyristor type device used for similar protective purposes.
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| 5. | The structure of an IGCT is very similar to a GTO thyristor.
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| 6. | A derivative of the thyristor drive is the simple AC phase controller.
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| 7. | They incorporated thyristor technology, which ensured more effective control.
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| 8. | The first thyristor devices were released commercially in 1956.
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| 9. | The SIDAC is another member of the thyristor family.
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| 10. | The other major problem was the thyristor control system for the traction motors.
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