This transmitter for the 2-meter range with a power of 1.5 W was found in a magazine 73 for radio amateurs. No information was provided about the coils.
This circuit uses a 741 operational amplifier that must be powered by a symmetrical source of 6 to...
This adjustable oscillator has the traditional configuration already presented in other articles. The...
In the figure below we have the main configurations of power supplies with the most used...