That is a great looking coil!&nb= sp=3B Bob
=3B

From: markusvester@ao= l.com
To: rsgb_lf_group@blacksheep.org
Date: Tue=2C 1 Apr 2014 20:28:= 26 +0200
Subject: Re: LF: WH2XBA/4 coil

=0A= =0A= =0A= =0A= =0A=
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Yes... all you'll need =3Bfor 8.3 = kHz =0A= is =3Bmake another coil of =3Bsame size=2C but wind ~ 3.5 times as = many turns =0A= (1160) of 3.5 times thinner wire (0.32 mm). =3B
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=3B
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Try it!
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=3B
=0A=
73=2C Markus (DF6NM)
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From: DK7FC =
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Sent: Tuesday=2C April 01=2C 2014 8:01 PM
=0A= =0A=
Subject: Re: LF: Re: [Lowfer] 29.499 tonight =0A= OP2H/DS...
=0A=

RR DEX=2C th= at looks fine! And it gives an impression =0A= between coils at 30 kHz to coils at 9 kHz.

73=2C Stefan
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Sent: Tuesday=2C April 01=2C 2014 7:31 PM
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Subject: LF: WH2XBA/4 coil
=0A=

https://www.dropbox.com/= s/2s04hl1zhs4qfhd/25mh_coil.jpg

The =0A= form is a pool chemical container from about 20 years past.
Resorting to= a =0A= more sensible measurement standard I conclude the following:

Total t= urns =0A= counts 325

Coil length 375 mm

This indicates a wire size of A= WG 17 =0A= which is 1.15 mm diameter =3B (375 mm
/ 325 turns =3D 1.1538 mm per= =0A= turn)

Coil diameter 350 mm

This calculates to approximately 2= 4 mH =0A= which is close to the 25 mH I
initially measured which I later revised = to =0A= 26.1 mH.

However I've made so many calculation errors recently this = also =0A= may
change :)

Dex

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