Air Core Coils. With 0.85 mm wire for constructing of high-quality hi-fi crossover networks, also of very high quality as parallel coils. Air core coils, from 0.1 to 3.9mH, wound on a plastic carrier, intended for professional crossover networks of high power for development and production. In a wire thickness from 0.85 to 1.2mm Ø CUL. Inductance | 0.39 mH | Enam. copper wire (CUL) | Ø 0.85 mm | Power rating | 100 WRMS | DC resistance | 0.4 Ω | Dimensions | Ø 48 mm x 19 mm | |