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Working of the circuit at 95 MHz

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akhilpaulv

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Hi ,

somebody please explain to me the working of the below circuit. It is placed in IF section of 95 MHz.

-Akhil Capture.PNG
 

Q2 and Q1 act as a Cascode Amplifier, Q4 and Q3 serve Current Source.The Current Source seems temperature compensated.
 

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