This circuit uses an unusual PLL, the 4046 CMOS. We found it in the October 1994 issue of Electronics Now. The circuit also uses a 4093 gate as a trigger.
This circuit consists in a capacitor bridge for capacitance measurements. The circuit can be...
This switched circuit was found in an old documentation and no information about the transformer...
This circuit was found in an American 1980s documentation. The transistorized step is the...