Cascode Video FET Amplifier Circuit Diagram The following schematic shows the FET Amplifier Circuit Diagram application on Cascode Video. The FET cascode video amplifier features very low input loading and reduction of feedback to almost zero.

The 2N3823 is used because of its low capacitance and high Yfs. Bandwidth of this amplifier is limited by RL and load capacitance. The 2N3823 is an N-channel JFET designed for RF amplifier and mixer application. It features low cross-modulation, low noise figure and good power gain at frequency up to 450MHz.

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