This circuit was found in an American documentation from 1969. Indications of the used transistors are not given, but general-purpose types can be tested.
We found this circuit in an old oscilloscope publication. With it, it is possible to observe the B...
We found this circuit in an Electronic Engineering from the 90s. It applies to any logical family....
This circuit is from a documentation for 1976 radio amateurs. We can implement this circuit with...