This 1967 Electronics World circuit is suitable for frequencies up to 1 MHz. The setting applies to virtually any junction FET.
This simple alarm circuit was found in the May 1990 issue of Radio Electronics magazine. The...
This is a typical application circuit of a 565 PLL. The circuit is suitable for selecting a 67 kHz...
This receiver receives signals from the VHF band with earpiece or application in a power stage. The...