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Projects => Tech Help - Projects Page => Topic started by: strat68 on January 09, 2020, 05:25:35 PM

Title: Naughty Fish 2.2 UF non-polarized cap
Post by: strat68 on January 09, 2020, 05:25:35 PM
Just realized I don't have one.  Some research shows that 2 polarized in series (net to net) should work.  I measured it and the capacitance is correct.  Anything else I need to know?
Thanks
Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: Caedarn on January 09, 2020, 11:35:53 PM
I have this project in the build queue, and was wondering if a film cap could be used here instead on the NP electrolytic? I would expect so. (Not that there are 2.2 uF film caps lying around either)
Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: jimilee on January 10, 2020, 12:03:15 AM
2-1ufs will work. That's what's on mine.


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Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: strat68 on January 10, 2020, 12:07:52 AM
Quote from: jimilee on January 10, 2020, 12:03:15 AM
2-1ufs will work. That's what's on mine.


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I don't think 2 1u's will work.  I tied the 2 negative leads together on 2 4.7uf eloctrolytics and got almost exactly 2.2u.  The sites I saw said that wiring caps in series halves both of them.
Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: jimilee on January 10, 2020, 12:08:41 AM
I'm sorry, I'm parallel. My bad.


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Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: jimilee on January 10, 2020, 12:10:32 AM
2uf total will be ok, it's not enough to make a difference.


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Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: madbean on January 10, 2020, 01:40:07 AM
1uF film is a-okay. Probably even 220n.

MLCC should also work in place of film. This part is not in the audio path.
Title: Re: Naughty Fish 2.2 UF non-polarized cap
Post by: Willybomb on January 10, 2020, 07:06:08 AM
I used a 2.2uf monolithic, iirc.