Found in documentation from the 1990s, this circuit supports equivalent transistors. The range is on the order of a few tens of meters.
This circuit was found in documentation from the 90s. Its purpose is to dial a programmed number...
I found this circuit in a magazine Mundo Eletrônico, from the 70s published by my friend A....
This circuit generates a signal rich in harmonics that extends up to close to 1 GHz, serving for...