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 small regulated power supply was found in a 1963 General Electric documentation. The special...
This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is...
The circuit shown is suggested by National Semiconductor's Linear Applications Handbook. The base...