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.
May 2017 - These new Digital to Analog converters from Texas Instruments, available from Mouser...
This simple alarm with SCR triggers a buzzer. It was found in the Encyclopedia of Electronic...
Found in American documentation, this circuit converts signals from the 27 MHz band for reception on an...