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Article #1023Re: An unusual Oscilloscope phenomenon
From: Joerg
Date: Thu, 25 Jun 2009 20:40
Date: Thu, 25 Jun 2009 20:40
51 lines
2850 bytes
2850 bytes
Spehro Pefhany wrote: > On Thu, 25 Jun 2009 19:38:11 +0800, "Dennis" <dennis@nowhere.com> > wrote: > >> "Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message >> news:psm645hcft91v992v67lovmj2fmp4ocr9d@4ax.com... >>> On Thu, 25 Jun 2009 03:49:50 +0100, Dirk Bruere at NeoPax >>> <dirk.bruere@gmail.com> wrote: >>> >>>> David L. Jones wrote: >>>>> Check out a rather unusual phenomenon you can see on your oscilloscope >>>>> in my >>>>> latest blog (#14): >>>>> http://www.alternatezone.com/eevblog/ >>>>> See if you can get it to happen on your scope! >>>>> I'll offer a free subscription to my blog for the best screen shot >>>>> posted >>>>> :-> >>>>> >>>>> Oh, and the probe doesn't have to be shorted either. >>>>> >>>>> Have fun. >>>>> Dave. >>>> Got it immediately, because I once worked in lab that had cheap plastic >>>> chairs that generated 1cm sparks when you stood up! >>> Back in the old days, they used to generate 1/2" sparks. >>> >> Nasty stuff that Bakelite. > > Goes nicely with wood cases: > > http://ip.co.za/shop/images/wheatstone.jpg > http://www.surplussales.com/Images/Equipment/TestEquipment/Leeds-Northrup/eqp-wbm-119828/eqp-wbm-119828_lg.jpg > Bad focus but shows the concept, when I was a teenager I made almost everything in wood, nicely polished, several layers of laquer, some more polishing: http://www.analogconsultants.com/ng/images/oak2.jpg I usually spent a lot more time on the enclosures than on the electronics but the stuff is still working. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
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X-Google-Thread: a5a6238865,2fb4482ba391e6 X-Google-Attributes: gida5a6238865,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news3.google.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Joerg <invalid@invalid.invalid> Newsgroups: sci.electronics.design,aus.electronics Subject: Re: An unusual Oscilloscope phenomenon Date: Thu, 25 Jun 2009 13:40:20 -0700 Organization: Consultant Lines: 51 Message-ID: <7ai5luF1ur1mbU1@mid.individual.net> References: <h8B0m.53620$FI5.3564@newsfe12.iad> <7ag6tuF1v6dv2U1@mid.individual.net> <psm645hcft91v992v67lovmj2fmp4ocr9d@4ax.com> <4a4361a5$0$2591$5a62ac22@per-qv1-newsreader-01.iinet.net.au> <d4p6459ct55gnvl3i1dnsij3mab9tt046u@4ax.com> Reply-To: news@analogconsultants.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net p7ZI1WwXMLTUDlb+KYJaYQ3paGAwKtJGBNVNErpOmd3tIIt9cs Cancel-Lock: sha1:e+CT0TNurR+vF76kApIlrmwVJiA= User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) In-Reply-To: <d4p6459ct55gnvl3i1dnsij3mab9tt046u@4ax.com>