This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit equivalents although the indicated types can still be found with some ease.
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...