| 21. | As compared with the common-base connection, it has higher input impedance and lower output impedance.
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| 22. | An " ideal " current source has an infinite output impedance in parallel with the source.
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| 23. | ;Symmetrical networks : A network is symmetrical if its input impedance is equal to its output impedance.
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| 24. | One simply needs to know the input impedance R p and to choose the output impedance R s.
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| 25. | If output impedance is large compared to the impedance of the headphones, significantly higher distortion will be present.
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| 26. | A feedback voltage amplifier using an op amp with finite gain but infinite input impedances and zero output impedance.
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| 27. | A " real-world " current source has a very high, but finite output impedance.
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| 28. | The Circlotron is fully symmetrical and does not require large amounts of feedback to reduce output impedance and distortion.
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| 29. | This circuitry increases the amplifier's output impedance, resulting in response similar to that of tube amplifiers.
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| 30. | The improvement factors ( 1 + ? FB A OL ) for determining input and output impedance might not work.
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