This circuit was found in the April 1984 issue of Radio Electronics magazine. The circuit directly drives a TRIAC to a high-power load.
This line protector circuit was found in a 2002 documentation, but it is totally current and...
This antenna for the frequencies 146 or 440 MHz was found in a magazine 73 for Amateur Radio of...
With this circuit it is possible to increase the output voltage of a 7812 regulator. The circuit...