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 digital indicator circuit was found in the June 1988 issue of Radio Electronics magazine. The circuit...
This powerful amplifier with 2N3055 transistors at the output provides a few tens of watts rms on a...
This simple logic level tester was found in Radio Electronics from the 90s. The inverters are of...