This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit equivalents although the indicated types can still be found with some ease.
We found this circuit in the August 1994 issue of Electronics Now. The 4046 is unusual today. The...
This twisted pair exciter circuit uses 80's components. The circuit is from a documentation of the time, but...
Using a 4046 PLL, which is uncommon today, this circuit was found in the October 1994 issue of...