This compact network adapter designed to power the Converter decimetric waves or other similar schemes.
The main damping element C1 type K73-17. VD1 is a pre stabilize the voltage, and thereby protect C2 and diodes bridge from high voltage. TP1 provides galvanic isolation from the mains (to be well isolated winding!). The diodes in both bridges can be any low-power or pulse rectifier 20 volts.
Publication: www.shustikov.by.ru, www.cxem.net