Return-Path: Received: from rly-de10.mx.aol.com (rly-de10.mail.aol.com [172.19.170.146]) by air-de04.mail.aol.com (v121_r5.5) with ESMTP id MAILINDE042-5074964902d1e6; Wed, 07 Jan 2009 06:21:28 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-de10.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDE102-5074964902d1e6; Wed, 07 Jan 2009 06:21:21 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LKWSl-00075b-CI for rs_out_1@blacksheep.org; Wed, 07 Jan 2009 11:20:39 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LKWSk-00075S-R1 for rsgb_lf_group@blacksheep.org; Wed, 07 Jan 2009 11:20:38 +0000 Received: from smtp-out-2.talktalk.net ([62.24.128.232] helo=smtp.talktalk.net) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LKWSj-0006UA-Am for rsgb_lf_group@blacksheep.org; Wed, 07 Jan 2009 11:20:38 +0000 X-Path: TTSMTP X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApsFACkfZElOlWZt/2dsb2JhbACCQi0hgUaGXcQthXU Received: from unknown (HELO mal769a60aa920) ([78.149.102.109]) by smtp.talktalk.net with SMTP; 07 Jan 2009 11:20:06 +0000 Message-ID: <005001c970b9$e4cf6eb0$0301a8c0@mal769a60aa920> From: "mal hamilton" To: References: <501156.55485.qm@web28107.mail.ukl.yahoo.com> Date: Wed, 7 Jan 2009 11:20:05 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Karma: 0: X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126 Subject: Re: LF: Razor blade RX .... Try a Cohere? Content-Type: multipart/alternative; boundary="----=_NextPart_000_004D_01C970B9.E449EB00" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.0 required=5.0 tests=CLICK_BELOW,HTML_30_40, HTML_LINK_CLICK_HERE,HTML_MESSAGE,HTML_TAG_EXISTS_TBODY 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-IP: 193.82.116.20 ------=_NextPart_000_004D_01C970B9.E449EB00 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable It seems everyone is MISSING THE POINT. I want someone to describe how to ma= ke RX using a RAZOR blade detector and also how to make the HEADPHONE neede= d to hear the signal, using the sort of components a soldier would have on t= he battlefront or a POW. Stick to the specific topic. I think noone knows how to do it.Think 1940 per= iod and what was available. g3kev ----- Original Message -----=20 From: M0FMT=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, January 06, 2009 11:23 PM Subject: Re: LF: Razor blade RX .... Try a Cohere? Hi Mal and LF I am disapointed in you Mal to be considering an envelope detector.=20= A true CW man, I would have thought, should only entertain the use of a Cohe= re detector! Having played with them, I was surprised how well they work over a r= ange 136kc/s to 433mc/s (the extent of my power RF O/P) probably work over a= much lager range of frequencies but not tested by me. http://home.earthlink.net/~lenyr/coherer.htm 73 pefmt --- On Tue, 6/1/09, mal hamilton wrote: From: mal hamilton Subject: Re: LF: Razor blade RX To: rsgb_lf_group@blacksheep.org Date: Tuesday, 6 January, 2009, 9:21 PM Your own cct and ideas and the headphone construction. Not info fr= om the web. g3kev ----- Original Message -----=20 From: riese-k3djc@juno.com=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, January 06, 2009 7:58 PM Subject: Re: LF: Razor blade RX 310113517964 E bay too On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" writes: Since I mentioned a Razor blade and fence wire RX a while back= I have had several requests for a circuit. To give others the opportunity t= o submit a cct I will await replies. This method was used successfully at C= oldiz and other POW camps to receive BBC broadcasts. Let us know how you would approach the subject. This is applic= able to MF/LF since the broadcasts at the time were receicved on these bands= . Build one and have a QSO using this RX g3kev ____________________________________________________________=20 Fashion Design Education - Click Here! -------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - http://www.avg.com=20 Version: 8.0.176 / Virus Database: 270.10.3/1877 - Release Date:= 1/5/2009 7:20 PM =20 ----------------------------------------------------------------------------= -- No virus found in this incoming message. Checked by AVG - http://www.avg.com=20 Version: 8.0.176 / Virus Database: 270.10.3/1879 - Release Date: 1/6/2009=20= 5:16 PM ------=_NextPart_000_004D_01C970B9.E449EB00 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
It seems everyone is MISSING THE POINT= . I want=20 someone to describe how to make  RX using a RAZOR blade detector and al= so=20 how to make the HEADPHONE needed to hear the signal, using the sort of=20 components a soldier would have on the battlefront or a POW.
Stick to the specific topic. I think noone=20= knows=20 how to do it.Think 1940 period and what was available.
g3kev
 
----- Original Message -----
M0FMT <= /DIV>
Sent: Tuesday, January 06, 2009 11:= 23=20 PM
Subject: Re: LF: Razor blade RX ...= . Try=20 a Cohere?



No virus found in this incoming message.
Checked by AVG -=20 http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.3/1879 -=20 Release Date: 1/6/2009 5:16 PM
------=_NextPart_000_004D_01C970B9.E449EB00--
Hi Mal and LF
 
I am disapointed in you Mal to be considering an envelope=20 detector. A true CW man, I would have thought, should only=20 entertain the use of a Cohere detector!
 
Having played with them, I was surprised how well they work ove= r a=20 range 136kc/s to 433mc/s (the extent of my power RF O/P) probably wo= rk=20 over a much lager range of frequencies but not tested by me.
 
 
73 pefmt
 


--- On Tue, 6/1/09, mal hamilton=20 <g3kevmal@talktalk.net> wrote:
From:=20 mal hamilton <g3kevmal@talktalk.net>
Subject: Re: LF: Raz= or=20 blade RX
To: rsgb_lf_group@blacksheep.org
Date: Tuesday, 6=20 January, 2009, 9:21 PM

Your own cct and ideas and the he= adphone=20 construction. Not info from the web.
g3kev
 
----- Original Message -----
Sent: Tuesday, January 06= , 2009=20 7:58 PM
Subject: Re: LF: Razor bl= ade=20 RX

310113517964   E bay too
 
On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" <g3kevmal@talktalk.net> writes:
Since I mentioned a Razor bla= de and=20 fence wire RX a while back I have had several requests for a=20 circuit. To give others the opportunity to submit a=20= cct=20 I will await replies. This method was used successfully=20  at Coldiz and other POW camps to receive BBC=20 broadcasts.
Let us know how you would app= roach=20 the subject. This is applicable to MF/LF since the broadcasts=20= at=20 the time were receicved on these bands.
Build one and have a QSO usin= g this=20 RX
g3kev
 
 


________________________________________________= ____________=20
Fashion Design Education - Click=20 Here!

No virus found in this incoming message.
Check= ed=20 by AVG - http://www.avg.com
Version: 8.0.176 / Virus Databas= e:=20 270.10.3/1877 - Release Date: 1/5/2009 7:20=20 PM