We found this circuit in the May 1989 Radio Electronics magazine. The circuit can have its values changed to operate at other frequencies and the power supply must be symmetrical.
This circuit was obtained in a 1976 magazine. We can use the 555 and another BC548 to generate square...
This 1969 Electronics World power supply has 5 V to power digital circuits and a 170 V output for...
This amplifier uses common transistors in a phase inverter configuration. Transistors must be...