This circuit was obtained from an 80's EDN. The components used are still common. The circuit can be used as a shield and the frequency is approximately 775 Hz.
Mouser Electronics already has in stock the new RF transceivers Atmel / Microchip ATA8820 SIGFOX ™ for...
This circuit can be used as a low Power audio booster for experimental projects such as radios,...
With a mains-rated transformer and 1:1 winding this benchtop circuit was found in the January 1995...