I believe the feed current was 500A.
73 de
John Rabson G3PAI
----- Original Message -----
From: Alan Melia <[email protected]>
To: <[email protected]>
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
[email protected]
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