Message-ID: <050901c07b3f$261c0320$c628f7c2@oemcomputer>
From: "John Rabson" <word.factory@zetnet.co.uk>
To: rsgb_lf_group@blacksheep.org
References: <000501c07a9a$1f3b34e0$65e77ad5@default>
Subject: LF: Re: re Paraffin Wax
Date: Wed, 10 Jan 2001 09:03:20 -0000
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I believe the feed current was 500A.

73 de
John Rabson G3PAI

----- Original Message -----
From: Alan Melia <Alan.Melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, January 09, 2001 11:10 PM
Subject: LF: re Paraffin Wax


> By the way the last time I was at Rugby GBR (16kHz) in the tuning loft,
the
> tuning-coil/variometer was made of 'litz' the diameter of an man's wrist
(I
> believe I was told it was 800 and some strands) and it was hung on an
'well
> seasoned oak frame' I believe. It was definitely varnished wood, and we
were
> cautioned that there was not a nail or screw in it. The construction was
all
> joints and dowels. This was in the early 60s when it was still sending
morse
> and the TX had not been phase-stabilised. Every time the key went down the
> coils 'tensed' like great muscles, and relaxed as the power went off
again.
> I asked but they did not seem to get trouble with work hardening or
fatigue.
> I believe the room was shielded by mesh but I cant remember now. Dave has
a
> way to go yet as they were only running QRP at 500kW. Another 500kW on hot
> standby and a third bank was in maintenance.
>
> Cheers de Alan G3NYK
> Alan.Melia@btinternet.com
>
>
>
>
>
>