Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id wBQKpBxs002444 for ; Wed, 26 Dec 2018 21:51:19 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gcG3h-0007ww-CS for rs_out_1@blacksheep.org; Wed, 26 Dec 2018 20:45:41 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gcG2O-0007wl-Jj for rsgb_lf_group@blacksheep.org; Wed, 26 Dec 2018 20:44:20 +0000 Received: from smtp3web.tin.it ([212.216.176.237]) by relay1.thorcom.net with esmtp (Exim 4.91_59-0488984) (envelope-from ) id 1gcG2J-0007Zd-CF for rsgb_lf_group@blacksheep.org; Wed, 26 Dec 2018 20:44:16 +0000 Received: from feu4 (10.192.64.14) by smtp3web.tin.it (8.6.060.43) id 5C0CC55A003E8278 for rsgb_lf_group@blacksheep.org; Wed, 26 Dec 2018 21:44:10 +0100 Received: from (95.249.73.43) by webmailtin.pc.tim.it; Wed, 26 Dec 2018 21:44:10 +0100 Message-ID: <167ec42a7ed.marcocadeddu@tin.it> Date: Wed, 26 Dec 2018 21:44:10 +0100 (CET) From: "marcocadeddu@tin.it" To: Mime-Version: 1.0 X-Originating-IP: 95.249.73.43:4417 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. 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Content preview: Dear Kumar, it is a sad history.. it is a long time that here in EU (but I guess also elsewhere) we are dealing with incredible low prices of chinese products... sometime I read on e-bay or similar platforms good [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.216.176.237 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (marcocadeddu[at]tin.it) 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: d2180dc2ab86baf139677702972e08e3 Subject: R: Re: LF: VU2BGS Content-Type: multipart/alternative; boundary="----=_Part_47068_26745763.1545857050608" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_FONTCOLOR_BLUE, HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false ------=_Part_47068_26745763.1545857050608 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear Kumar, it is a sad history.. it is a long time that here in EU (but I guess also e= lsewhere) we are dealing with incredible low prices of chinese products... = sometime I read on e-bay or similar platforms goods offered to a price, inc= luded freight, lower of the shipping price alone (from Italy). Some items are good or at least good enough for the purpose others lack for= some feature.. It is an hard world! :-D By the way concerning ferrites and iron dust cores properties will suggest = to download a software called "mini ring core calculator" just google these= four words and you get plenty of possible download. The software provide calculation of inductance for cores made from Amidon, = TDK and Ferrox. The other longer way is to download catalogues or data sheets from the prod= ucers or from the web pages of sellers like digikey, mouser etc. P.S. please do not use ferrite cores for the base loading coil of your (ex)= top band vertical!! wind a large huge coil on suitable cores like pvc drai= ning pipes. Don't worry with 14m vertical and some top load the coil is not so big :-) = - after all this will a training for 137 kHz winding, and if you will follo= w Stefan... for larger and larger loading coils for VLF! We all hope to hear good news from you soon Namast=C3=A9 Marco, IK1HSS ----Messaggio originale---- Da: bsgkumar@gmail.com Data: 26-dic-2018 17.14 A: Ogg: Re: LF: VU2BGS Dear Clemens Thanks for the kind suggestion I will look it up .does any one= have some kind of Material and equivalent table . I find the post offices are charging exorbitant duties , Yesterday i paid = 57 %=20 while chinese goods come in easily with lower pricing !! . I presume there = would be some chinese companies making toroids . Thanks again Best regards Kumar On Wed, Dec 26, 2018 at 9:37 PM Clemens Paul wrote: Hi Kumar, >only the ferrites are a big problems here ! You may have a look at https://www.radio-store.co.uk/ They ship worldwidwe,sell also small quantities and have very competitive p= rices. 73 Clemens DL4RAJ=20 =20 >-----Original Message----- >From: owner-rsgb_lf_group@blacksheep.org=20 >[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Gaj Kumar >Sent: Wednesday, December 26, 2018 9:40 AM >To: rsgb_lf_group@blacksheep.org >Subject: Re: LF: VU2BGS ------=_Part_47068_26745763.1545857050608 Content-Type: text/html;charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Kumar,

it is a sad history.. it is a long time that here in EU = (but I guess also elsewhere) we are dealing with incredible low prices of c= hinese products... sometime I read on e-bay or similar platforms goods offe= red to a price, included freight, lower of the shipping price alone (from I= taly).
Some items are good or at least good enough for the purpose other= s lack for some feature..
It is an hard world! :-D
By the way concern= ing ferrites and iron dust cores properties will suggest to download a soft= ware called "mini ring core calculator" just google these four words and yo= u get plenty of possible download.
The software provide calculation of i= nductance for cores made from Amidon, TDK and Ferrox.
The other longer w= ay is to download catalogues or data sheets from the producers or from the = web pages of sellers like digikey, mouser etc.

P.S. please do not us= e ferrite cores for the base loading coil of your (ex) top band vertical!! = wind a large huge coil on suitable cores like pvc draining pipes.
Don't = worry with 14m vertical and some top load the coil is not so big :-) - afte= r all this will a training for 137 kHz winding, and if you will follow Stef= an... for larger and larger loading coils for VLF!

We all hope to he= ar good news from you soon

Namast=C3=A9
Marco, IK1HSS

----Messaggio originale----
Da: bsgkumar@gmail.com
Data: 26-dic-2018 17.14
A: <rsgb_lf_group@blacksheep.org>
Ogg: Re: LF: VU2BGS


Dear Clemens 
Thanks for the kind = suggestion I will look it up .
does any one have some kind of Mat= erial and equivalent table .

I find the post offic= es are charging  exorbitant duties , Yesterday i paid 57 % 
=

while chinese goods come in easily with lower pricing != !
 . I presume there would be some chinese companies making = toroids .

Thanks again 
Best regard= s 
Kumar



On Wed, Dec 26, 2018 at 9:37 PM Cleme= ns Paul <cpaul@gmx.net> wrote:

Hi Kumar,

 >only the ferrites are a= big problems here !

You may have a look at
= https://www.radio-store.co.uk/

They ship worldwidwe,sell also sm= all quantities and have very competitive prices.

73
Clemens
DL4RAJ
 

>-----Original Message-----
>From: owner-rsgb_lf_group@black= sheep.org
>[mailto:owner-rsgb_lf_group@blac= ksheep.org] On= Behalf Of Gaj Kumar
>Sent: Wednesday, December 26= , 2018 9:40 AM
>To: rsgb_lf_group@blacksheep.org<= /font>
>Subject: Re: LF: VU2BGS



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