| 21. | Variable capacitors with their plates open to the atmosphere were commonly used in radio tuning circuits.
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| 22. | This allows Intel chip designers to quickly fine-tune circuits to generate more speed from their microprocessors.
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| 23. | The size of the aerials makes the unit a tuned circuit resonating at one specific frequency.
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| 24. | The poles so calculated can then be used to define the tuned circuits of the individual stages.
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| 25. | The negative resistance of the screen grid cancels the positive resistance of the tuned circuit, causing oscillations.
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| 26. | The supply transformer " ( T ) " secondary winding is connected across the primary tuned circuit.
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| 27. | Standard capacitors have a fixed value of capacitance, but adjustable capacitors are frequently used in tuned circuits.
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| 28. | Two predictor circuits may overlap, with tuned circuits used for one predictor to jump over the other.
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| 29. | An inductor connected to a capacitor forms a tuned circuit, which acts as a resonator for oscillating current.
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| 30. | The resistor R1 sets the grid bias; both the input and output are tuned circuits with inductive coupling.
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