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 was found in a 90s Radio Electronics. It is intended to amplify the sound channel of...
This circuit uses a 4020 counter that divides the frequency up to 210, being found in a former...
This circuit was found in a Radio Electronics magazine from May 1967. The circuit has the time...