This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz signals and values in parentheses for FI of 455 kHz. The circuit can be adapted to other frequencies.
Found in an 1868 Mullard documentation this circuit has a dynamic range of 10 Hz to 25,000 Hz....
This extremely simple circuit was found in an American publication called Electronics Handbook,...
August 2017 - Mouser Electronics has already received the XBee® Cellular 3G modules with built-in...