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Article #2165Re: 250 Volt AC 50hz supply from battery to test Multimeter
From: John G
Date: Tue, 17 Feb 2004 01:58
Date: Tue, 17 Feb 2004 01:58
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2356 bytes
"budgie" <me@privacy.net> wrote in message news:hdh130dkrv8eia7sce4vbakbvk5vo7i95l@4ax.com... > On Mon, 16 Feb 2004 12:22:12 GMT, "Dave Nichols" <dnichols@bigpond.net.au> > wrote: > > >I don't know a lot about electronics design, I'm an electrician but have > >built a few electronic circuits succesfully. > >When we do a test for dead on electrical equipment before isolating and > >tagging we have to test meter on known 240v AC 50hz live source before > >testing equipment for dead. If this is during a power failure there is no > >240v AC supply to test meter. > >I thought maybe you could have a sine wave generator at 50hz feed into an > >amplifier and take output to a transformer instead of a speaker. > >don't know if this is feasible, maybe there are better ways to do it. > >whatever I come up with needs to be compact and portable to go in > >electricians tool box. > >Any comments or thoughs would be appreciated > > The sort of thing that Bob Parker would do. He lurks mainly in aus.electronics, > I have x-posted this there. A small invertor from Dick Smith or Jaycar will run from your vehicle attery and provide plenty of AC for this job. -- John G Wot's Your Real Problem?
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,ff8104e2c376ad X-Google-Attributes: gid112d1e,public X-Google-Thread: 103407,a2e1b495846b3e86 X-Google-Attributes: gid103407,public X-Google-ArrivalTime: 2004-02-16 17:59:18 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!news1.optus.net.au!optus!snewsf0.syd.ops.aspac.uu.net!nnrp1.ozemail.com.au!53ab2750!not-for-mail From: "John G" <Greentest@ozemail.com.au> Newsgroups: sci.electronics.design,aus.electronics References: <UB2Yb.62674$Wa.33056@news-server.bigpond.net.au> <hdh130dkrv8eia7sce4vbakbvk5vo7i95l@4ax.com> Subject: Re: 250 Volt AC 50hz supply from battery to test Multimeter Lines: 40 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Message-ID: <pzeYb.76$L43.2210@nnrp1.ozemail.com.au> Date: Tue, 17 Feb 2004 12:58:41 +1100 NNTP-Posting-Host: 203.103.108.147 X-Trace: nnrp1.ozemail.com.au 1076983125 203.103.108.147 (Tue, 17 Feb 2004 12:58:45 EST) NNTP-Posting-Date: Tue, 17 Feb 2004 12:58:45 EST