This circuit was obtained in an American documentation from the 80's. The transistors can be equivalent to those indicated and the crystal can reach a few tens of megahertz.
Found in 90s Popular Electronics, this circuit uses common general-purpose transistors in a...
This circuit is interesting for experiments and can be part of the bench in the form of a module. The...
This single-channel remote control transmitter operating in the FM range uses common components and...