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.
This circuit is ideal for recovering vinyl media with a linear response from the RIAA curve of the...
The purpose of this circuit found in the September 1977 issue of Radio Electronics magazine is to...
We found this circuit in the July 1990 issue of Radio Electronics magazine. The frequencies are...