This shield was found on an old EDN. The MOSFET can be of any type according to the controlled load. The power can be between 5 and 15 V typically and can be different for the MOSFET.
Other operational amplifiers series, such as MC34072, MC34074, MC35071, MC35072, MC35074 d MC33071...
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...
The consumption of this circuit in the standby condition is only 1 uA. The circuit must be...