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Re: LF: 8.97kc - TV transformer info needed

To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: 8.97kc - TV transformer info needed
From: "Mike.WE0H" <we0h@gmx.com>
Date: Mon, 31 May 2010 10:02:03 -0500
In-reply-to: <4C03CD6E.9020906@iup.uni-heidelberg.de>
References: <20100530.082855.1608.1.riese-k3djc@juno.com> <4C02783D.9020502@gmx.com> <CCD7CFD1-7A64-4664-94A0-7665CC1C673A@hurontel.on.ca> <4C0326F4.5050609@gmx.com> <4C03CD6E.9020906@iup.uni-heidelberg.de>
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Hi Stefan,

How many turns should I wind for a primary side? 8 to 10 maybe?
I was using a 48.4 milli-henry primary winding with the secondary at 4.2 henry. There are many primary windings on this transformer but this 48.4 milli-henry winding gave me the highest output voltage on the secondary. 300v p-p with only .7v p-p input.
Mike
WE0H



Stefan S wrote:
Mike,

Try to use just 65 % of the turns of your primary winding and i bet the optimum will be on 9 kHz! :-)
73, Stefan

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