common emitter amplifier circuit

The single-tube common-emitter amplifier circuit is an amplifier circuit with excellent performance , as shown in the figure.
    The circuit adopts a voltage-divided emitter bias circuit that automatically stabilizes the static operating point
and has good temperature stability. The transistor uses silicon tube 3DG6 with very small ICEO
. Variable resistor RP is used to adjust the static operating point.
    The reference values ​​of component parameters are as follows:
    1) The transistor is 3DG6.
    2) Resistance: Rb]-15k{l, RhZ-llkfl. RRP - lOOkll,
R.-5.lkfl,,Rel—5101,,ReZ—lkn,RL= 5.lkfl.
  3) Capacitance: cl =cz - io VF, Ce =47FeF