Found in Motorola documentation from the 1970s, the circuit presented uses a component from the era that is not common today. The characteristics of the coils are given next to the diagram.
This traditional circuit with the 555 was found in a 1984 documentation. In this oscillator, the...
This circuit was found in a 70s American documentation. The converter can be of any type and the...
We found this circuit in a 1995 publication. It makes use of infrared LEDs of the type existing at...