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PSU HUm Cancellation Help
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cannikin



Joined: 06 Jan 2006
Posts: 42
Location: New York City
PSU HUm Cancellation Help  Reply with quote  

HI guys,

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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David
Post Thu Oct 26, 2006 4:27 pm   View user's profile Send private message
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