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Date: Mon, 20 Mar 2006 21:32:52 +0100
From: "John RABSON" <john.rabson@wanadoo.fr>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Decca SG
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>Yes, the 807 is more-or-less an 6L6 with different
>connections.
>
>Costas SV1XV

I'm not sure I agree with this.  My Wireless World valve data book from the=
 late 1950s describes the 6L6 as an (audio) output beam tetrode rated for=
 300V on the anode, 200V  on the screen, and delivering about 6W output.

The same book quotes the 807 as accepting up to 600V on the anode, 250V on=
 the screen and being able to deliver up to 40W RF at up to 60MHz.

I recall reading in the RSGB Bulletin of old-timer who ran 110W to a single=
 807 using on-off keying and with 1kV on the anode.  He said the important=
 thing was to keep the screen dissipation low.  I am not sure a 6L6 would=
 do as well.

73,
John G3PAI