This circuit generates a 1296 MHz signal from 100 or 1,000 kHz crystals. We found it in an American documentation for radio amateurs.
The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook. The...
This circuit was found in a Popular Electronics from the 90s. The components admit equivalents and the...
This simple digital frequency meter using CMOS circuits reaches 5 MHz frequency. Input signals are...