This circuit indicates when current is flowing in a battery charger circuit. The circuit was found in the June 1984 issue of Radio Electronics magazine.
The circuit in figure 10 uses two of the 4001's four ports to trigger a relay in a timed manner. The...
This circuit measures the RF power of oscillators and small transmitters in the range of 0.05 to...
This circuit was obtained from a Radio Electronics magazine from June 1969. The circuit uses a...