This circuit controls a heating element using a triac. Triac must be fitted with a heat sink. We find it in an American documentation from the 80s.
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...