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.
Fluorescent lamps in the range from 4 to 40 W can be powered on from cells or batteries. The lamp...
The suggestion for using this circuit from an old American documentation is to use small antennas...
This simple charger was found in a 1980s documentation. The transistor may be the TIP42 with a...