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 an 80's EDN. The circuit uses a current common CMOS, the 4093 powering...
The aim of this circuit is the protection of a 2N3055 transistor, avoiding the overheat. The...
We obtained this circuit from the 1977 National Semiconductor FET Databook. The frequency depends only...