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High pass filter to remove 60hz

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crutschow

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You can't totally "remove" the 60Hz but you can reduce its level.
How much attenuation of the 60Hz do you need?
 

audioguru

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Any power supply with half-decent filtering feeding a modern circuit produces no hum. An amplifier without a shielded input cable guarantees lots of hum.
 

Externet

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Agree with post #4.
And, in critical needs, the best way to eliminate 60Hz is to not have 60Hz to start with.
 

dknguyen

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Post is too vague and make no sense as written. Wanting to remove 60Hz from a 120VAC circuit is like saying you want to remove the liquid from water.
 

audioguru

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Most power supplies use a full-wave rectifier to make DC with 120Hz ripple, not 60Hz. Then it is filtered with a large capacitor.
 
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