This circuit was found in the January 1991 issue of Radio Electronics magazine. The circuit uses integrated circuits of the time and the coils depend on the tuned bands.
This full wave configuration using SCR was found in a 1992 documentation. The SCR must be equipped...
We found this circuit in the March 1992 Radio Electronics magazine. The circuit provides 100 Hz...
This version of an astable CMOS with the 4069, and which appears elsewhere on this site and in...