This amplifier circuit for the 7 MHz band, which corresponds to the 40-meter band of radio amateurs, uses an unusual MOSFET today. Equivalent can be used. The details of the coils are given in the circuit.
This amplifier circuit for the 7 MHz band, which corresponds to the 40-meter band of radio amateurs, uses an unusual MOSFET today. Equivalent can be used. The details of the coils are given in the circuit.