Return-Path: Received: (qmail 31932 invoked from network); 27 Nov 2002 17:47:36 -0000 Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 27 Nov 2002 17:47:36 -0000 Received: (qmail 2796 invoked by uid 10001); 27 Nov 2002 17:47:29 -0000 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 27 Nov 2002 17:47:29 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18H6BM-0003a0-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 27 Nov 2002 17:41:04 +0000 Received: from [194.73.73.93] (helo=rhenium) by post.thorcom.com with esmtp (Exim 4.10) id 18H6BM-0003Zr-00 for rsgb_lf_group@blacksheep.org; Wed, 27 Nov 2002 17:41:04 +0000 Received: from host213-122-49-61.in-addr.btopenworld.com ([213.122.49.61] helo=main) by rhenium with smtp (Exim 3.22 #16) id 18H6BL-00068c-00 for rsgb_lf_group@blacksheep.org; Wed, 27 Nov 2002 17:41:03 +0000 Message-ID: <000b01c2963c$0f7ab7a0$3d317ad5@main> From: "Alan Melia" To: "LF-Group" Date: Wed, 27 Nov 2002 17:39:13 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: QZ06-40 Content-Type: text/plain; charset=Windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.0 required=5.0tests=SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.42 X-Spam-Level: * Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Hi Mal the QZ06-40 is not in my 1969 book ...I wonder whether that is a QQxxx the double tetrode. As far as I can see the "Z" version is a quick heat heater for "mobile" applications. I think the heater fired up off about 2 volts from an overwind on an inverter (in Pye kit at least) and was up to working temp in a few seconds. Thus it was not necessary to run the valve heater continuously, and flatten the battery. I seem to remember QQZ06-20As (or were they -40As)in 30Watt Pye W30 Westminster long-case boot mount mobile. I think a lot of the valves I came across had gold plated pins too. Cheers de Alan G3NYK alan.melia@btinternet.com