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.
This circuit was found in the June 1990 issue of Radio Electronics magazine. Integrated circuits must...
The figure shows an application of the LM377 in a small inverting stereo amplifier with output...
This is a possible circuit for the receiver of the previous circuit. Other circuits can be found...