This circuit was found in a 1965 General Electric documentation. It is intended for reception of the aviation strip, but inside an aircraft or nearby (which is now prohibited).
This circuit can be used as a shield for sensors or analog circuits connected to the digital input...
Found in a 90s Popular Electronics, this transistorized circuit generates pulses from 2 Hz to 50...
This circuit was found in an old documentation, being able to generate signals of frequencies in...