PSU HUm Cancellation Help
I have some issues with a couple units I built - I'm getting a LOT of 120Hz hum
and on ONe of the two unit 60Hz too. Here is the Spectrum Graph:
I was thinkning of using a Feed through Hum Cancellation as a cure-
Here is the set up -- does this look right to you.
What do you think?
I was thinking of increasing the Filter Caps to 33uf and 2 16uf 450V in hopes to decrease any ripple and adding the Hum cancellation 5K Pot -
that should help the 60hz but how do I deal with the 120Hz
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