DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=btinternet.com;
  h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE:X-Antivirus:X-Antivirus-Status;
  b=4y2N421Qv4v5oDLsFhSQ+MxjXYgVxmc1jwkSlw09rOquasuYl1D8OM1EkwmbLPz8Sk5G8C3ImbgRVprq3B/k2SnblgMWB2ExZfoTr7QsjTUSkbKNGGRjiJsZczLzbv07uy7AxIGas8TgbNF/2vCVOytRgArTy0WRYtcJ2qdt2HI=  ;
Message-ID: <006c01cc87ab$427234c0$4001a8c0@lark>
From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <4E91694C.8060900@orange.fr>  <4E9169AD.8090609@wanadoo.fr>  <4E918C0E.30401@freenet.de>  <4E918FF1.1010407@iup.uni-heidelberg.de>  <1318166502.15085.YahooMailNeo@web28106.mail.ukl.yahoo.com> <1849736542-1318171189-cardhu_decombobulator_blackberry.rim.net-208700020-@b1.c11.bise7.blackberry> <FB0006513E634A96AFED8066F7C344C1@JimPC> <4E920BBA.9040200@iup.uni-heidelberg.de> <BA4122BA92D44641A1BE5ED27FD763E5@JimPC> <Pine.LNX.4.64.1110091918360.28918@plato.ucs.mun.ca> <4E934A40.9040204@gmx.de> <Pine.LNX.4.64.1110102003170.6615@plato.ucs.mun.ca>
Date: Tue, 11 Oct 2011 01:18:07 +0100
MIME-Version: 1.0
DomainKey-Status: good (testing) 
Subject: Re: LF: VX9MRC QRV 507.77 kHz/ Arcing relays &c.
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
X-AOL-SCOLL-URL_COUNT: 0  
X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m003.2 ; domain : btinternet.com DKIM : pass  
x-aol-sid: 3039ac1d60184e938b6911f5
X-AOL-IP: 195.171.43.25
X-AOL-SPF: domain : blacksheep.org SPF : none


Hi Joe, why not stick two sets of normal contacts in series....doubles the
gap :-))

Alan

----- Original Message ----- 
From: <jcraig@mun.ca>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, October 10, 2011 11:54 PM
Subject: Re: LF: VX9MRC QRV 507.77 kHz/ Arcing relays &c.


> Hello Hartmut, Group.
>
> Good to hear from you again, Hartmut.  Thank-you for  the report.
>
> The beacon is on again, but there was some trouble: to use the tower
> on 160m the 500 kHz tuning coil (0.2 mH) is shorted by a relay. The
> N.O. contacts on this relay arced over.  Perhaps a high voltage (vacuum)
> relay would help?
>
> This  problem will be much worse on 137.777 kHz with the higher voltage.
> I have some spiral wound 4mm (Decca) litz to make up the 3 mH for that
> project.  (The spiral winding was inspired by G3NYK's experiments with
> tuning coils on his web page.)
>
> 73
> Joe
>
> On Mon, 10 Oct 2011, Hartmut Wolff wrote:
>
> > Am 2011-10-09 23:50, wrote jcraig@mun.ca:
> >> Dear Group,
> >> Reports on the 8 WPM CW beacon will be appreciated!
> >> 73
> >> Joe VO1NA
> >
> > Attached a screenshot of the 8wpm signal. The signal came up at about
23:20
> > and faded out at about 7:35. The strongest part was between 04:00-06:00
UTC
> > -- 
> > 73
> > Hartmut
> > www.h-wolff.de
> > Locator: JO52hp
> >
>
> This electronic communication is governed by the terms and conditions at
>
http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2011.php
>