This receiver for infrared remote control was found in the Philips Databook of 1990, The circuit operates with 5 V and is intended for receiving data.
SST LLE Series Liquid Level Sensor Switches Available through Mouser Electronics, these solid...
The first circuit is shown in figure 3 and uses a 2N2222 transistor or equivalent. This circuit can...
This circuit shows how an inductive capacitance can be used to reduce the voltage of Power supply...