The output voltage of this circuit is approximately four times the supply voltage. The circuit is from an Electronics Now April 1995. The output current is very low.
This circuit, found in a publication from the 1970s, uses two PNP power transistors that can be...
This is the traditional configuration of a high-pass filter with an operational amplifier, such as...
This traditional sensor configuration with LDR was found in a 2001 documentation. The integrated circuit...