This circuit was found in an Electronic Experimenter Handbook from the 90's. The coil can be formed by 4 turns of wire 28 with 0.5 cm diameter without core for the FM band.
The gain for this circuit is given by the ratio between R2 and R1. The circuit is suggested by...
The circuit suggested in a 2009 documentation serves as support for the technician who works in...
a We find this circuit which has a traditional configuration in a 1988 publication. The circuit is...