With this passive circuit it is possible to modulated in amplitude a low intensity RF signal. The circuit is from old American documentation and uses a germanium diode as its main component.
This converter has coils according to the reception and converted frequency bands. We found it in...
This high-power transistor amplifier was found in a 1995 documentation. The source is given in the...
This integrated amplifier was found in a non-existent British magazine from 1975. The used...