Power Filter on a 9V battery??

Frequently asked questions regarding powering your pedal.
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JoshGreen
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Post by JoshGreen »

I'm building a fuzz type circuit that'll be powered from an adaptor and a battery, and as the adaptor that i'm using is cheap and noisy i'm going to put the beavis audio 'huminator' type power filter before my circuit. But i want to do it all on one vero board, which means that both the 9V battery and the adaptor will get the filtering. Is there any reason to not do this? like, would it not be a good idea to run a battery through a power filter to power my fuzz or does it make no difference? The beavis audio filter is just a diode to ground, 100ohm resistor, a 47nF and a 100uF cap to ground also.

This is my first post so sorry if it's in the wrong place.

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teleK
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Post by teleK »

I would say it couldn't hurt to put the battery through the filter. Batteries are fairly clean power supplies, but its not like you're losing much of any power through the filter.

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