Return-Path: Received: (qmail 13766 invoked from network); 9 Feb 2003 12:12:02 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 9 Feb 2003 12:12:02 -0000 Received: (qmail 25514 invoked by uid 10001); 9 Feb 2003 12:12:02 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 9 Feb 2003 12:12:02 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18hqIe-0005E3-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 09 Feb 2003 12:11:08 +0000 Received: from [62.253.164.42] (helo=mta2-svc.business.ntl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18hqId-0005Du-00 for rsgb_lf_group@blacksheep.org; Sun, 09 Feb 2003 12:11:07 +0000 Received: from l8p8y6 ([62.252.228.74]) by mta2-svc.business.ntl.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with SMTP id <20030209121105.JTTH21072.mta2-svc.business.ntl.com@l8p8y6> for ; Sun, 9 Feb 2003 12:11:05 +0000 Message-ID: <002d01c2d034$4167e580$4ae4fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.2.20030209081417.00a39ec0@mail.pncl.co.uk> Date: Sun, 9 Feb 2003 12:10:07 -0000 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 V6.00.2800.1106 Subject: Re: LF: xtals Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=-0.9 required=6.0tests=EMAIL_ATTRIBUTION,MAILTO_LINK,REFERENCES,SPAM_PHRASE_00_01, SUPERLONG_LINE,USER_AGENT_OEversion=2.43 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit
 
----- Original Message -----
Sent: Sunday, February 09, 2003 8:19 AM
Subject: Re: LF: xtals

At 20:12 08/02/03 +0000, G3KEV wrote:

I have a Decca Marine RX, comprising 3 units and a Display unit all tube construciton. Two of the units have lots of high stab xtals. These xtals are glass encapsulated and gold plated construction. Does anyone know the frequency of these xtals, the freqs are not marked on the xtals, each xtal is enclosed in a metal can and marked GEC and other ref numbers. These look promising for other LF work.
73 de Mal/G3KEV
 

Should be receiver unit, power unit, and display unit. Display should have three or four circular meters.
Give me the receiver type number - it'll be on a plate somewhere - and I'll tell you exactly what the xtals are.
Almost certainly they're for the Decca freqs - 71, 85, 113 and 127 kHz.

Walter G3JKV.
Hello Walter and tnx ur msg.
 
The system is a Decca  MK 12 consul and the rx chassis with the xtals is marked OSCILLATOR CHASSIS C9340/G
VCOB-1 TO VC9B-1 There is a total of 21 xtals on this chassis, selectable with a motor driven rotary switch.
Xtals are GEC quartz crystal unit
one example is marked part no 9340x 8e, they all have numbers but no frequency marks.
Perhaps you know the exact freqs of the range. They might be useful for LF osc work, to pull on freq around 73 and 136 khz or hetrodyne with a vfo etc.
73 agn tnx de Mal/G3KEV



 


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