Portable AC and HWDC coil AC and rectified half-wave HWDC operation. Designed for testing with both dry and suspended magnetic particles. The coils are made of black polyurethane, very resistant but lightweight. Inner diameter chosen from the versions: ✓ 8" (200mm) ✓ 10"(250mm) Thermal protection Power supply: 230V 50Hz Cable length 10m Duty cycle: 50% in AC, 10% in DC It can also be used as a demagnetizer. Bobina AC e HWDC portatile v10.1 eng.doc