This circuit was found in an ancient American documentation. With it is possible to double the frequency of a transmitter For the range of 6 meters obtaining 8 W. The circuit makes use of varicap.
In the figure we have the way to implement an adjustable active cycle oscillator using PLL 567....
This circuit was found in the January 1995 Electronics Now magazine. The source must be dual, and...
This biestable can use a common comparator like the LM339 and the power depends on the load, which...