The LL1667 is an anode choke for tube amplifiers. The choke is built with two coils and using Lundahls special audio C-core. The coil is made using a low capacitance coil winding technique. The two coil structure greatly reduces the risk of picking up hum caused by external magnetic fields from e.g. mains transformers. The LL1667 chokes are available with different core airgaps resulting in different inductance-DC current combinations on request.