Wideband Buffer using FET and Bipolar Transistor

The following schematic diagram is a wideband buffer formed by FET and bipolar transistor. A Series of feedback buffer is used in this circuit which act as wideband unity-gain amplifier. It has high input impedance due to low input impedance of 2N5485 FET. Here is the circuit from freecircuitdiagram.com :

Wideband Buffer Circuit Diagram

 

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