Erbium (Er) 24.26mm Metal Disc 99.9% Pure for Collection or Experiments
- 250mm x 46mm (internal diameter) solenoid. Wound with insulated copper wire.
- Operating voltage 12V A.C. or D.C. at 6A. Magnetizing by A.C. or D.C. Demagnetizing by A.C. only.
- Additional requirements: AC/DC Power Supply (12V, 6A), Magnetic Needle, Cylindrical Bar Magnet, Analogue Multimeter.