Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses coils and transformers hadr to find in our days. The circuit is destinated to receive MW stations.
This circuit used in tape recorders was found in an Electronic Design. The components support...
This circuit uses common components activating a control relay for the water pumps. The sensors are...
The two adding and differentiating circuits with operational amplifiers given below were obtained from...