Return-Path: Received: (qmail 82870 invoked from network); 22 Sep 2004 18:41:25 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 22 Sep 2004 18:41:25 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CAC75-000BBw-Rl for dave@picks.force9.co.uk; Wed, 22 Sep 2004 19:45:12 +0100 Received: from [192.168.67.1] (helo=ptb-mxcore01.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CAC75-000BBt-Oh for dave@picks.force9.co.uk; Wed, 22 Sep 2004 19:45:11 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1CAC3R-0002pz-72 for dave@picks.force9.co.uk; Wed, 22 Sep 2004 18:41:25 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CAC2q-0006Qr-9S for rs_out_1@blacksheep.org; Wed, 22 Sep 2004 19:40:48 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CAC2p-0006Qi-UA for rsgb_lf_group@blacksheep.org; Wed, 22 Sep 2004 19:40:47 +0100 Received: from h13.rdg.cp.net ([209.228.29.63] helo=n066.sc1.cp.net) by relay.thorcom.net with esmtp (Exim 4.41) id 1CAC2f-0001se-0o for rsgb_lf_group@blacksheep.org; Wed, 22 Sep 2004 19:40:48 +0100 Received: from l8p8y6 (62.252.230.15) by n066.sc1.cp.net (7.0.030.2) id 414F722A00056BFC for rsgb_lf_group@blacksheep.org; Wed, 22 Sep 2004 18:40:31 +0000 Message-ID: <001201c4a0b7$f0819520$0fe6fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Wed, 22 Sep 2004 16:21:40 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-SPF-Result: relay.thorcom.net: 209.228.29.63 is neither permitted nor denied by domain of virgin.net X-Spam-Score: 1.6 (+) X-Spam-Report: autolearn=no,DATE_IN_PAST_03_06=0.68,HTML_30_40=0.809,HTML_MESSAGE=0.001,RCVD_IN_SORBS=0.1 Subject: LF: PORTADYNE Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.5 required=5.0 tests=DATE_IN_PAST_03_06,HTML_30_40, HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit

Hi All

Tnx agn for all the info and photos. The age seems to be around 1927-1930. I still need a cct diagram and the valve line up.

Some have suggested the valve types. They seem to be B4 type according to the Wireless World radio valve data book, old version with blue cover 1963.

On close inspection the dial has wavelength calibrations and a few faint names like Paris etc

Anymore info welcome.

de Mal/G3KEV