Simply place the tool or object you want to magnetize inside the coil and briefly press S1. The generated single polarity field should magnetize the object if the material it is made to allow.
This circuit has the transistor chosen according to the maximum current desired at the output. Unlike...
This simple Wheatstone bridge uses only passive components. We can calibrate R1 in terms of...
Found in Motorola documentation from the 1980s, this circuit employs an integrated device from...