This amplifier was found in an Electronics Now from the 90s. The FETs are part of a CD4007CB.
This 5.1 MHz circuit was found in a 1980s documentation. The frequency is given by the crystal and...
To power small projects, we found this circuit in the Radio Electronics magazine of May 1977. The...
May 2017 - Mouser Electronics already has in stock with the new ADP244x switched regulators from...