This somewhat complex circuit was found in the May 1984 issue of Radio Electronics magazine. The circuit drives a power stage with a triac for loads connected to the power grid.
This code practice oscillator was found in an English publication from the 80's. The circuit can...
This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...
In the figure we have the simple way of controlling a load or having a signal from an optical...