cascode amplifier

A practical solution to this low-input-impedance problem is to place a common emitter stage at the input to form a cascode amplifier.

The CS-CG combination is called a cascode amplifier.

Figure 1 shows an example of a cascode amplifier with a common source amplifier as the input stage driven by a signal source, V.

A Cascode amplifier is a two-stage circuit consisting of a transconductance amplifier followed by a buffer amplifier.

The 6N24P (Russian: 6Н24П) is a miniature Russian-made medium gain dual triode vacuum tube, intended for service as a cascode amplifier at HF through VHF frequencies.

A popular circuit for use at high frequencies is the cascode amplifier, as shown below:-Gain of Q1 due to load of Q2 Miller capacitance The miller capacitance across the input of the CE stage is double the Base collector capacitance of Q1.