This commercial radio for the AM band was sold in Japan in the 1960s. The circuit has an IF of 455 kHz and is powered by batteries. The push-pull output gives a good audio power.
In the figure we show yet another CMOS component based voltage controlled oscillator circuit. The...
This power supply can provide 10 A currents. Its regulation is made by 7812 integrated circuit. The...
The circuit shown bellow is gated by an external signal. A high logic level applied to the input...