In 2008 I decided to design PCB for N2PK VNA Power Supply based on Paul´s solution, with a small changes. First Article was published in the Yahoo group in the same year. One year later I designed two new versions of VNS PS. Second article was not published in the group.
First version of N2PK VNA Power Supply. Provides 12V and 5V DC with overvoltage protection.
Second version of N2PK VNA Power Supply. This version is no more available!
Third version of N2PK VNA Power Supply for transverter users. It provides 12V, 9V and 5V DC with overvoltage protection circuits.
Version 4 is a mutation of the version 3 PSU. It provides 5V and 12V protected DC outputs. Size of PCB is 76x53mm.