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 Audio System circuit was found in 1965 documentation. It is a 50 ohm line circuit with 22 dB...
This 1.5 A circuit has the output voltages adjusted by a selector switch. We found it in a Popular...
Three LM158, LM258, LM358, or LM2904 operational amplifiers are used in this instrumentation amplifier....