We found this circuit in a 1997 documentation. It can be used in any common 12 V source and has two relays that disconnect the source in the event of a short circuit.
This audio-driven relay was published in the July 1977 issue of Radio Electronics magazine. The...
This circuit can be used for signaling a panel with a common incandescent lamp. The lamp will...
This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...