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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Unfortunately... posted by geoffkait on January 14, 2012 at 11:23:38:
Hi, Geof,
Long time, no chat.
So, now that we've got a vibrating fuse clip....which is firmly attached to the board, we've got a vibrating board? The fundamental of all this is 60hz...the resistance of the wire.....nearly negligable....so, how much force could possibly be transmitted to the board? By the time you hit the 3rd or 4th harmonic of the powerline freuqency you must be in the sub-picodyne region..... certainly near the molecular noise floor....
Sorry, I don't buy it.
I would suggest an experiment! Put a fuse in a box of a couple cubic feet. The box also contains a speaker connected to an amp/source. Run 60hz thru the fuse. Don't pop the fuse. You'll also need a dual trace scope of as high a frequency as you can manage. certainly 100s of MHz. have a second fuse, wired as the first in a similar box with NO speaker. Put 60hz thru that one, too. Look at BOTH traces in some kind of either out of phase or 'subtract' mode in the scope, such that only differences appear. Nothing should be on the screen, the traces being identical. Turn on the speaker....loud...no...louder! See anything on the scope? Didn't think so.
From this I'd conclude the microphic fuse myth busted
Too much is never enough
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Follow Ups
- RE: Unfortunately... - pictureguy 11:59:04 01/14/12 (4)
- Fortunately. - Norm 06:13:57 01/16/12 (0)
- RE: Unfortunately... - pictureguy 22:53:57 01/14/12 (0)
- RE: Unfortunately... - rick_m 19:02:20 01/14/12 (0)
- Geez, Louise - geoffkait 14:07:14 01/14/12 (0)
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