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Re: LF: Re: [Lowfer] 29.499 tonight OP2H/DS...

To: [email protected]
Subject: Re: LF: Re: [Lowfer] 29.499 tonight OP2H/DS...
From: Dexter McIntyre W4DEX <[email protected]>
Date: Tue, 01 Apr 2014 09:29:25 -0400
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DK7FC wrote:
HI Dex,

That's a 100 kV transformer as used in HV labs, right?
No. It's a plastic swimming pool chemical container wound with 18 gauge enamel wire. Math calculates 30 mH but I measure 26.1 mH. The coil tunes the wire to 29.170 kHz. Capacitors in plastic box added in series to tune 29.501 kHz.
https://www.dropbox.com/s/4wuim6ub9gg4vv1/26.1mh-coil_49.4nf-cap_29.501khz.jpg

Dex


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