The integrated circuits used in this project are uncommon today. It is worth the idea for a microcontrolled project or with equivalents. We found this configuration in an old documentation.
We found this circuit in a 1956 documentation from Sylvania. The circuit is for bench testing and...
This circuit was found in the Radio Electronics magazine of July 19666. The search coils are the...
This circuit allows only signals with frequencies below the calculated value to pass. The formulas for...