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Article #2237Re: Itsy Bitsy Teeny Weeny Transformers
From: Marc H.Popek
Date: Fri, 23 May 2003 02:28
Date: Fri, 23 May 2003 02:28
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how about the pulse transformer inside the flash unit inside of the the throw away cameras???? Plus you get a cool strobe light "Mike Diack" <moby@kcbbs.gen.nz> wrote in message news:3eccb0e6.54530502@News.xtra.co.nz... > I'm redesigning a device for blind navigation that I first designed a > decade or so ago, which requires a transformer to drive an > electrostatic transducer (sweeping 100..50KHz, around 100v P/P driven > from a 6v P/P source). > My first iteration used a (hand wound) Philips 10mm 3E25 toroid. I > gave one of my original samples to a local transformer outfit and > asked them to make me something smaller (and tidier!) > Everything they came back with was bigger than my original. > I have seen a polarisation tranny inside an AKG C460 microphone which > is smaller than the size of a frozen pea. Admittedly this tranny only > has to handle a single frequency wheras mine carries a sweep, but who > can make trannies like that or where can the cores be sourced > (preferably surface mount) > cheers > M
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,e37f8834cc3a8153 X-Google-Attributes: gid112d1e,public X-Google-Thread: 103407,e37f8834cc3a8153 X-Google-Attributes: gid103407,public X-Google-ArrivalTime: 2003-05-22 19:28:38 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!arclight.uoregon.edu!wn13feed!worldnet.att.net!bgtnsc05-news.ops.worldnet.att.net.POSTED!not-for-mail From: "Marc H.Popek" <LVMarc@worldnet.att.net> Newsgroups: sci.electronics.design,aus.electronics References: <3eccb0e6.54530502@News.xtra.co.nz> Subject: Re: Itsy Bitsy Teeny Weeny Transformers Lines: 24 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4133.2400 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Message-ID: <pHfza.168514$ja4.8422883@bgtnsc05-news.ops.worldnet.att.net> Date: Fri, 23 May 2003 02:28:37 GMT NNTP-Posting-Host: 12.80.24.181 X-Complaints-To: abuse@worldnet.att.net X-Trace: bgtnsc05-news.ops.worldnet.att.net 1053656917 12.80.24.181 (Fri, 23 May 2003 02:28:37 GMT) NNTP-Posting-Date: Fri, 23 May 2003 02:28:37 GMT Organization: AT&T Worldnet