The choke for the power supply is made on the duble C-cores (HiB 0.23mm). It is a very neat kind of winding which. It has two separate windings. When is connected in series, the inductance is 10H.DC current is up to 250m. When is connected in parallel, the inductance is 2.5H. DC current is up to 500mA. Is more then 20Gohm checked with a megger 2500V , during 1 minute. The insulation material is Mylar. The weight of the choke is 1.4Kg. The item "Duble choke for power supply tube amp. DIY" is in sale since Saturday, February 20, 2021. This item is in the category "Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\Amplifier Parts & Components". The seller is "buran180581" and is located in Ariel, Shomron. This item can be shipped worldwide.