Found in a publication for radio amateurs from the 1980s, this circuit amplifies signals in the 60 kHz band (VLF), Winding data from the ferrite antenna are provided along with the diagram.
The presented circuit uses an uncommon operational amplifier but can be implemented with a more...
The circuit shown uses a FET as a stabilizer, as this type of circuit usually uses lamps in this...
This circuit is from an American publication from 1975 and can use other operational amplifiers and...