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1.	Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â are used in the final stages of radar and radio transmitters to increase the radiated power level.
A.	power amplifiers
B.	oscillators
C.	transistors
D.	attenuators
Answer» B. oscillators

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