Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values with and without a complete C-core are shown in the table below. Current ratings are based on 150A per square cm. The coils will run hot but will not be damaged by short-term currents of up to twice the stated value.No. of Turns: 5000 + 250 TurnsAir-core: 625mHWire: 0.15/0.71mmMax Current: 0.03AAlternative Transformer Coils are also available to purchase separately:B8H26436 - 60+ 60 TurnsB8H26459 - 500 + 125 TurnsB8H26461 - 1200 + 1200 TurnsB8H26473 - 120 + 120 Turns