Envelope-to: dave@picks.force9.co.uk Delivery-date: Sun, 18 Dec 2005 21:21:22 +0000 Received: by pih-mxcore10.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1Eo5y6-0001nj-2A for dave@picks.force9.co.uk; Sun, 18 Dec 2005 21:21:22 +0000 Received: from post.thorcom.com ([193.82.116.20]) by pih-mxcore10.plus.net with esmtp (PlusNet MXCore v2.00) id 1Eo5y5-0001mG-T2 for dave@picks.force9.co.uk; Sun, 18 Dec 2005 21:21:21 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Eo5xP-0005vK-DU for rs_out_1@blacksheep.org; Sun, 18 Dec 2005 21:20:39 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Eo5xO-0005vB-QO for rsgb_lf_group@blacksheep.org; Sun, 18 Dec 2005 21:20:38 +0000 Received: from omc3-s24.bay6.hotmail.com ([65.54.249.98]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1Eo6JN-0007o3-Ae for rsgb_lf_group@blacksheep.org; Sun, 18 Dec 2005 21:43:23 +0000 Received: from hotmail.com ([65.54.173.54]) by omc3-s24.bay6.hotmail.com with Microsoft SMTPSVC(6.0.3790.211); Sun, 18 Dec 2005 13:20:08 -0800 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 18 Dec 2005 13:20:08 -0800 Message-ID: Received: from 71.37.244.7 by BAY5-DAV24.phx.gbl with DAV; Sun, 18 Dec 2005 21:20:08 +0000 X-Originating-IP: [71.37.244.7] X-Originating-Email: [we0h1@msn.com] X-Sender: we0h1@msn.com From: "MIKE REID" To: rsgb_lf_group@blacksheep.org References: Date: Sun, 18 Dec 2005 15:20:07 -0600 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Sun, 18 Dec 2005 15:20:07 -0600 X-OriginalArrivalTime: 18 Dec 2005 21:20:08.0521 (UTC) FILETIME=[D292F390:01C60418] Subject: LF: Re: MP 137 Content-Type: text/html; charset=windows-1252 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Content-transfer-encoding: 8bit
Baking caps in the tuner box oven Mitch???
 
Mike
WE0H
 
----- Original Message -----
From: Mitch Powell
Sent: Sunday, December 18, 2005 1:33 PM
Subject: LF: MP 137

Greetings:
MP ( 137776.8 ) spent the last few days re-building loop tuning
unit - after demise of one of the tuning capacitors.
Capacitor removed from old TU  ( BC375 ) tuning units - 0.01 uF
Sangamo 5000 Test Volt - still working to a degree - but
antenna current dropping slowly over a month period from 6
Amps to 3 amps.  Inspected capacitor and found unknown substance
oozing from sides and the colour of the capacitor changed from
light brown to deep black.

The other indication was the change in the DC current at the transmitter -
key down at beginning of QRSS30 was approx 4 amps slowly increasing
to 9 amps over the 90 second key down period.

I have replaces all the capacitors, retuned, and all appears well - with
instant DC transmitter current - and a full 7 AMP of RF current at the
loop.

Observing the signal at W3EEE ( thanks Steve ) at mid-day.... and
have gained mucho dB at his receiving site.

Frequency appears to be 137776.8

Temp -5C,  snow approx  45cm ( 18" ) on ground.

Mitch  VE3OT