Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 04F1438000085; Fri, 16 Dec 2011 07:07:02 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RbWY7-0002sh-Ri for rs_out_1@blacksheep.org; Fri, 16 Dec 2011 12:06:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RbWY6-0002sY-O0 for rsgb_lf_group@blacksheep.org; Fri, 16 Dec 2011 12:06:02 +0000 Received: from cmsout02.mbox.net ([165.212.64.32]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RbWY4-0000AI-TE for rsgb_lf_group@blacksheep.org; Fri, 16 Dec 2011 12:06:02 +0000 Received: from cmsout02.mbox.net (co02-lo [127.0.0.1]) by cmsout02.mbox.net (Postfix) with ESMTP id 6F3FB134F87 for ; Fri, 16 Dec 2011 12:05:53 +0000 (GMT) X-USANET-Received: from cmsout02.mbox.net [127.0.0.1] by cmsout02.mbox.net via mtad (C8.MAIN.3.72B) with ESMTP id 846PLPmFx1056M02; Fri, 16 Dec 2011 12:05:49 -0000 X-USANET-Routed: 3 gwsout-vs Q:bmvirus Received: from cmsapps01.cms.usa.net [165.212.11.136] by cmsout02.mbox.net via smtad (C8.MAIN.3.72B) with ESMTP id XID865PLPmFx6834X02; Fri, 16 Dec 2011 12:05:49 -0000 X-USANET-Source: 165.212.11.136 IN dibene@usa.net cmsapps01.cms.usa.net X-USANET-MsgId: XID865PLPmFx6834X02 Received: from [127.0.0.1] [151.55.2.72] by cmsapps01.cms.usa.net (ESMTPSA/dibene@usa.net) via mtad (C8.MAIN.3.72B) with ESMTPSA id 161PLPmFW1168M36; Fri, 16 Dec 2011 12:05:49 -0000 X-USANET-Auth: 151.55.2.72 AUTH dibene@usa.net [127.0.0.1] Message-ID: <4EEB341A.2090802@usa.net> Date: Fri, 16 Dec 2011 13:05:46 +0100 From: Alberto di Bene User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Enigmail-Version: 1.3.4 X-Antivirus: avast! (VPS 111216-0, 12/16/2011), Outbound message X-Antivirus-Status: Clean Z-USANET-MsgId: XID161PLPmFx1168X36 X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Wellbrook Loop Content-Type: multipart/alternative; boundary="------------030904040807050503040904" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,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-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:396777568:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d600b4eeb34665907 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------030904040807050503040904 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit On 12/16/2011 12:21 PM, Andy Talbot wrote: > I've just read the review of the welbrook Loop in the latest RadCom, > and wondering if anyone here knows the preamp configuration. That seems tp be one of the best kept secret in this world... many tried, unsuccessfully, to reverse engineer that preamplifier... it is potted in a very hard resin, and, as far as I know, up to now nobody succeeded to reveal its schematic. Something that is claimed to work at the same level of quality is this : http://wl1030.pa3ang.nl/content/ I bought some time ago the components to build it, but haven't find yet the time to do it. 73 Alberto I2PHD --------------030904040807050503040904 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 12/16/2011 12:21 PM, Andy Talbot wrote: 
I've just read the review of the welbrook Loop in th=
e latest RadCom,
and wondering if anyone here knows the preamp configuration.
That seems tp be on= e of the best kept secret in this world... many tried, unsuccessfully,
to reverse engineer that preamplifier... it is potted in a very hard resin, and, as far as I
know, up to now nobody succeeded to reveal its schematic.

Something that is claimed to work at the same level of quality is this :

http://wl1030.pa3ang.nl/content/

I bought some time ago the components to build it, but haven't find yet the time to do it.

73=A0 Alberto=A0 I2PHD
=A0
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