Large Bobbin Core (LBC) chokes designed for use in HF applications. The inductors are constructed using a large ferrite drum core wound with enamelled copper wire with the assembly protected by flame-retardant lacquer coating. The chokes feature a high rated current and a choice of values make them suitable for use in applications such as RF blocking and filtering, decoupling and interference suppression, as 12 or 16kHz blocking filters in telecommunications equipment, automotive electronics, energy-saving lamps, entertainment electronics.