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Date: Thu, 26 Oct 2006 17:09:43 +0200
From: "John RABSON" <john.rabson@wanadoo.fr>
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On 26/10/2006 at 13:24 captbrian wrote:

>All very well but for a decent, reliable rotary spark-gap on '600 metres'
>you young fellers can't beat the 1913 edition.
>
>Bryan
Or an interrupter wheel (see chapter 4 of Radio Engineering, ed Roy C=
 Norris, Odhams, undated).

73
John