Low voltage, suitable for magnetizing and demagnetizing ordinary magnets, iron bars, strips etc. Comprises a solenoid wound with insulated copper wire and mounted on a base with 4mm sockets.  Solenoid Coil length 250 mm x internal radius 35 mm .Operating Voltage max. 12 V AC or 6 V DC. Magnetizing by A.C. or D.C. Demagnetizing by A.C. only