This circuit was found in the July 1969 Radio Electronics magazine. The circuit controls resistive loads and universal motors with power according to the SCR used.
We found this circuit that warns when the gate of a house is opened in an old documentation,...
This circuit was found in a 90s Electronic Engineering. The quadruple operational amplifier can be...
This tone control was obtained in the Audio Handbook of the National Semiconductor of 1977. The...