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.
This is a configuration much explored by assemblers, being found on this site in dozens of similar...
This simple circuit was found in an English magazine that no longer exists, January 1970 issue. It is...
Texas Instruments Type D flipflops N74LVC1G79 and SN74LVC1G179-Q1 for operation from 1.65 to 5.5V...