Used in radio reception, this circuit was found in the February 1983 Radio Electronics magazine. The integrated circuit is the NE570 IC, and the power supply is 3.6 V.
This circuit for analog TV was found in an American documentation from the 90s. The circuit uses an...
The rectangular oscillator shown in the figure makes use of one of the four NAND ports of an...
This two-input limit detector was found in an American 1980s documentation. The circuit can be...