Alternate Power DC-IN on the Euler Bus also with PI filter for batt operation

[MarkHaysHarris777]

   

In this second filter I rewound the toroid inductor (doubled the windings) and moved all the pins to one side of the board, will facilitate easier mounting in the boat's weather proof case. 

   

The pic above is a close-in of the hand-wound toroid inductor. I pulled the inductor from an older PC planar board and removed the original 10 wrap winding.  Then, using enameled coper wire, I replaced the wrap with twenty turns; this also is very easy to do; although tedious, and maybe a little boring.

Now I just need the second CPT to arrive.