I understand there are two types of safety capacitors. X capacitors go from hot to neutral, across the line while Y capacitors go from line to ground. Why not replace the infamous death cap with a Y safety cap? Thanks.
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Why not replace the "death" capacitor with a "Y" Safety capacitor?
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Several manufacturers do just that in current designs. Maybe not on a switch, but from line to ground, which is effectively the same thing.
So I don't see it as any problem using one to replace the 'death cap' as you suggest. I think for most people though, it is too much bother, as just removing it altogether often does not introduce any objectionable noise or hum.Originally posted by EnzoI have a sign in my shop that says, "Never think up reasons not to check something."
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déjà vu oddness!
Replace Death Cap with Safety Cap?
nearly the same post from 8 yrs ago! Good discussion!
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what is the smalest value for this cap to be effective ?.Last edited by catalin gramada; 09-05-2017, 04:28 AM."If it measures good and sounds bad, it is bad. If it measures bad and sounds good, you are measuring the wrong things."
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As with most things in Life, let alone Electronics, its value is a compromise.
Too large, it will tickle ; too small it won´t do much, pick your`poison.
Time tested values are around .047uF for 100-120V mains and no cap to .022 for 220-250V ones.
Personally I use .01uF on 220V mains to have a noticeable effect but no magic bullet.Juan Manuel Fahey
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