Lundahl Anode choke, LL1668

Tube anode chokes LL1668

The LL1667 and LL1668 are anode chokes for tube amplifiers. The chokes are built with two coils and are using our own special audio C-core. The coils 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 and LL1668 are available with different core airgaps resulting in different inductance-DC current combinations on request.

Weight: 0.78 kg
Static resistance of each winding 340 k?
Max DC current per winding, all applications 80 mA
Isolation between windings and core: 4 kV

Approx. inductance (windings in series): 100 H
Standing DC current: 25 mA
Saturating DC current: 40 mA
Max signal voltage @ 30 Hz: 235V RMS