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   alt.electronics      Electronics design, repair, worship, etc      7,706 messages   

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   Message 7,161 of 7,706   
   "William Gothberg" <"William to Rod Speed   
   Re: Do switch mode power supplies flicke   
   21 Dec 18 21:37:55   
   
   XPost: alt.home.repair, uk.d-i-y   
   From: Gothberg"@internet.co.is   
      
   On Thu, 20 Dec 2018 19:25:49 -0000, Rod Speed  wrote:   
      
   >   
   >   
   > "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   > news:op.zubpuunso5piw3@desktop-ga2mpl8.lan...   
   >> On Thu, 20 Dec 2018 04:27:41 -0000, Clare Snyder    
   >> wrote:   
   >>   
   >>> On Wed, 19 Dec 2018 16:39:50 -0000, "William Gothberg" <"William   
   >>> Gothberg"@internet.co.is> wrote:   
   >>>   
   >>>> On Wed, 19 Dec 2018 16:34:11 -0000, whisky-dave    
   >>>> wrote:   
   >>>>   
   >>>>> On Wednesday, 19 December 2018 16:21:43 UTC, Mark Lloyd  wrote:   
   >>>>>> On 12/19/18 6:01 AM, William Gothberg wrote:   
   >>>>>>   
   >>>>>> [snip]   
   >>>>>>   
   >>>>>> > They probably are fairly crude.  I know they flicker, for example if   
   >>>>>> > I   
   >>>>>> > use my cordless drill, the chuck appears to spin the wrong way under   
   >>>>>> > the   
   >>>>>> > LED lighting.   
   >>>>>> I remember seeing that with a washing machine (under fluorescent   
   >>>>>> lights). As the tub was slowing down, the row of holes around the tub   
   >>>>>> would appear to reverse direction. Same thing with (spoked) wagon   
   >>>>>> wheels   
   >>>>>> in movies.   
   >>>>>   
   >>>>> You can also observe such things using a smartphone that has a high FPS   
   >>>>> rate for recodring movie.   
   >>>>> I can see the labs lights flicker when I film at 240FPS  standard 60   
   >>>>> and everything seems fine.   
   >>>>   
   >>>> Everybody seems to constantly cut corners.  Lights should just be on, no   
   >>>> flicker at all.  Fucking annoying if you have decent eyesight, I can see   
   >>>> the flicker from almost everyone's LED tail lights.   
   >>>   
   >>>   
   >>>   This is sounding more and more like our "engineer friend" who needs   
   >>> to do his own tire repairs and alignments and clutch repairs.   
   >>   
   >> Don't know who you're referring to, but what's wrong with striving for   
   >> perfection?   
   >   
   > It increases costs for everyone who isnt a freak.   
      
   There's perfection and there's perfection.  You for example like LEDs you can   
   control the colour of, nothing wrong with that.  But OCD folk take things too   
   far, like washing their car every day because of two specks of dust.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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