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 is from an old Signetics documentation. It can be implemented with modern operational...
This circuit was found in a 1980s documentation for amateur radio. The circuit makes use of...
The transistor used in this circuit is uncommon today. AC124 or equivalent such as AC188K and...