Re: Itsy Bitsy Teeny Weeny Transformers

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#2236

From: Aaron
Date: Fri, 23 May 2003 00:12

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Try PWI in Wichita, Kansas, as they do a ton of specialty transformers.
www.pwi-e.com

-a

"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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From: "Aaron" <alf@layerz.com>
Newsgroups: sci.electronics.design,aus.electronics
References: <3eccb0e6.54530502@News.xtra.co.nz>
Subject: Re: Itsy Bitsy Teeny Weeny Transformers
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