In the figure we have an IF amplifier step using a MOSFET. The circuit was found in a 1980s documentation, intended for FM receivers of the time.
This oscillator takes advantage of the inductance of a high impedance magnetic earphone to...
This adjustable source was found in a 1979 documentation, but all components are still common...
The purpose of this Hartley oscillator is to produce the shot effect on a toy or other...