This oscillator provides a 1 MHz rectangular signal determined by the capacitors used. The circuit must be powered by a voltage of 5 V. The maximum frequency depends on the logic used.
This transmitter for the 2-meter range with a power of 1.5 W was found in a magazine 73 for radio...
The configuration shown in the figure is one of the most traditional when it is desired to produce...
This circuit operates according to the same principle as the previous one, but it has a difference in...