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[195.171.43.25]) by mx.google.com with ESMTP id ey17si252435wic.78.2013.08.05.11.58.07 for ; Mon, 05 Aug 2013 11:58:07 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1V6PM6-0005rN-BJ for rs_out_1@blacksheep.org; Mon, 05 Aug 2013 19:18:06 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1V6PM5-0005rE-To for rsgb_lf_group@blacksheep.org; Mon, 05 Aug 2013 19:18:05 +0100 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1V6PM4-0002Wl-D4 for rsgb_lf_group@blacksheep.org; Mon, 05 Aug 2013 19:18:04 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As0GADnr/1FcECWM/2dsb2JhbABbgkJEAa85iTGHD4EgF3SCM04jCwoDBwF6JBsJiAO1OZAZgyB0A4hyhg6aL4MYOw X-IPAS-Result: As0GADnr/1FcECWM/2dsb2JhbABbgkJEAa85iTGHD4EgF3SCM04jCwoDBwF6JBsJiAO1OZAZgyB0A4hyhg6aL4MYOw X-IronPort-AV: E=Sophos;i="4.89,820,1367967600"; d="scan'208,217";a="418856105" Received: from host-92-16-37-140.as13285.net (HELO malHP) ([92.16.37.140]) by out1.ip04ir2.opaltelecom.net with SMTP; 05 Aug 2013 19:18:04 +0100 Message-ID: <5D032D01E2EE46F787E1B76C10EFDDCF@malHP> From: "mal hamilton" To: "rsgb" Cc: "rsgb_lf_group@yahoogroups.co.uk" Date: Mon, 5 Aug 2013 19:17:59 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: lf group After many recent direct requests for decca 5501 mods for 73 Khz see following info. This info is a general guide. High band units need to be modified to Low band specification for convenience to get on 73 Khz Main coil inductance needs to be 126.75 uH which in conjunction with existing Capacitor board of 37.5 nF will resonate on 73 Khz. Guard cct will consist of 9 turn overlapping main coil winding and in conjunction with C1/330nF plus C2/470nF in parallel will achieve the object, see cct diagram of 5501 unit. Low band unit 5F will need only slight adjustments, 6F will need some more turns added to main coil, guard coil should be within tolerance possibly. 73 and gl de mal/g3kev [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 HTML_FONT_SIZE_LARGE BODY: HTML font size is large X-Scan-Signature: 9ca91679b330d65f05d707c2d2b164fe Subject: LF: DECCA 73 kHZ MODS Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01CE9210.7F493800" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_20_30,HTML_FONT_BIG, HTML_MESSAGE,MISSING_OUTLOOK_NAME 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 Status: O X-Status: X-Keywords: X-UID: 384 This is a multi-part message in MIME format. ------=_NextPart_000_001B_01CE9210.7F493800 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable lf group =20 After many recent direct requests for decca 5501 mods for 73 Khz see = following info. This info is a general guide. High band units need to be modified to Low band specification for = convenience to get on 73 Khz Main coil inductance needs to be 126.75 uH which in conjunction with = existing Capacitor board of 37.5 nF will resonate on 73 Khz. Guard cct will consist of 9 turn overlapping main coil winding and in = conjunction with C1/330nF plus C2/470nF in parallel will achieve the = object, see cct diagram of 5501 unit. Low band unit 5F will need only slight adjustments, 6F will need some = more turns added to main coil, guard coil should be within tolerance = possibly. 73 and gl de mal/g3kev ------=_NextPart_000_001B_01CE9210.7F493800 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
lf group   
After many recent direct requests for decca 5501 = mods for 73=20 Khz see following info.
This info is a general guide.
High band units need to be modified to Low band = specification=20 for convenience to get on 73 Khz
Main coil inductance needs to be 126.75 uH which in=20 conjunction with existing Capacitor board of 37.5 nF will resonate on 73 = Khz.
Guard cct will consist of 9 turn overlapping main = coil winding=20 and in conjunction with C1/330nF plus C2/470nF in parallel will achieve = the=20 object, see cct diagram of 5501 unit.
Low band unit 5F will need only slight adjustments, = 6F will=20 need some more turns added to main coil, guard coil should be within = tolerance=20 possibly.
73 and gl
de mal/g3kev
 
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