The new pcb for the power supply filter arrived.

I assembled the components ( after finding the whoops ) and connected it to the bench power supply for nnaida2.

nnaida2 functions just about the same as before but the power supply filter results seem amazing.

I have measured the signals on the power supply before and after the filter.

The 'scope is referenced to earth on the filter board and this earth is connected to earth through the +5v@10A supply.

Before the filter the average noise on the rail ( AC coupled ) is 33mV and after is ....... 5mV pretty exciting stuff.

 I have attached the two 'scope pictures.

The same measurements on the +7v, -6v and 0v rails give similar improvements.

The choke on the +5v rail measures 34 degrees C so care will need to be taken.

Next I will measure the voltage drops across the filter and decide on the correct voltage settings for the AIDA switch mode power supply.

Then install the filter into the supply and check ..... and check ......