This circuit was found in an American documentation from the 90's. What it does is provide at the output a voltage that is the average of the voltages set for the inputs.
This small audio amplifier uses germanium transistors and a 12 V supply. The circuit is from a...
This low-current control circuit has a lamp as a load, but can have other types of devices, such...
This circuit transforms your low sensitivity analog multimeter into an electronic voltmeter with...