Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk05.r1000.mx.aol.com (Internet Inbound) with ESMTP id EB75838000224; Thu, 11 Apr 2013 08:07:46 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UQGGx-0004GF-LL for rs_out_1@blacksheep.org; Thu, 11 Apr 2013 13:06:35 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UQGGw-0004G6-Rw for rsgb_lf_group@blacksheep.org; Thu, 11 Apr 2013 13:06:34 +0100 Received: from imr-ma02.mx.aol.com ([64.12.206.40]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UQGGt-0003qe-LC for rsgb_lf_group@blacksheep.org; Thu, 11 Apr 2013 13:06:33 +0100 Received: from mtaout-mb03.r1000.mx.aol.com (mtaout-mb03.r1000.mx.aol.com [172.29.41.67]) by imr-ma02.mx.aol.com (Outbound Mail Relay) with ESMTP id 13CA31C000135; Thu, 11 Apr 2013 08:06:10 -0400 (EDT) Received: from [192.168.1.64] (host-92-8-85-210.as43234.net [92.8.85.210]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mtaout-mb03.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPSA id 95C19E0000C4; Thu, 11 Apr 2013 08:06:08 -0400 (EDT) Message-ID: <5166A72E.8080908@aol.com> Date: Thu, 11 Apr 2013 13:06:06 +0100 From: pat Organization: G4GVW User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: M0FMT References: <0D5F8C81FCD24061BCDE1F5E2C9785E7@AGB> <1365633794.18069.YahooMailNeo@web133204.mail.ir2.yahoo.com> <1365673624.52897.YahooMailNeo@web133204.mail.ir2.yahoo.com> <7B14049AB0084B3EB5BA4E6BB153ECB8@AGB> <1365679082.78051.YahooMailNeo@web133205.mail.ir2.yahoo.com> In-Reply-To: <1365679082.78051.YahooMailNeo@web133205.mail.ir2.yahoo.com> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1365681970; bh=Zneq+TMfJK7mVO++ilZkRF/eTjHhZt/vvtqTD/rCWnk=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=utAjklNs3RYZU+h6r7MxXevTvo8+bxgPlgue0AmMfMymIoPMyJDZCKoPcFosCvwC4 MjCQ8E4/I18Bprn5CMF6gjGu+sdcIyL+Z38nV8P7csNWyFMmBVwNV34yyEwFx13ng0 fjYtc1gqpzt6T7AMQsadAJ1R7x7nqx9XBBboIoho= X-AOL-SCOLL-SCORE: 0:2:421393440:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-Spam-Score: 0.8 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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Content preview: And Wireless Set No.17 for £2:19:6 (2Volt accumulator and HT Battery 10/- extra) And we're all getting older! 73 [...] Content analysis details: (0.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.206.40 listed in list.dnswl.org] 2.2 TVD_SUBJ_ACC_NUM Subject has spammy looking monetary reference 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (g4gvw[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -2.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: c793d0c4de6e7a8e9de14f2dfb1e95c8 Subject: Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz Content-Type: multipart/alternative; boundary="------------010707010100010801080707" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: *** X-Spam-Status: No, hits=3.6 required=5.0 tests=AMATEUR_PORN,HTML_30_40, 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-AUTHENTICATION: mtain-mk05.r1000.mx.aol.com ; domain : mx.aol.com DKIM : fail x-aol-sid: 3039ac1d61895166a7923e56 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------010707010100010801080707 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable And Wireless Set No.17 for =A32:19:6 (2Volt accumulator and HT Battery=20 10/- extra) And we're all getting older! 73 On 11/04/13 12:18, M0FMT wrote: > Hi Graham > How young you are my introduction to Tottenham Court Road (Proops?) ,=20 > Lisles Street (GW Smiths), Charring Cross and The Edgeware Road =20 > about 1956. Aaaaah those were the days. learnt a lot about=20 > Radio, Life, the Universe and everything there...... hee! > Got my R107 from Lisle Street with money save from my apprentices pay.=20 > Carried it (abt 1 CWT) via bus to Kings Cross in the days when the=20 > conductor would jump off the bus and give you had to get it on=20 > board........ imagine that on a "Bendy Bus" today. See=20 > http://www.retinascope.co.uk/lislestreet.html for the full story. > OK on the stick info yes but I am CW only really can't get too excited=20 > about sterile data although as you know I do partake occasionally. > 73 es GL Pete M0FMT IO91UX > > *From:* Graham > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Thursday, 11 April 2013, 11:52 > *Subject:* Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 K= Hz > > R Pete > Well , its possible to use the emergency vfo , but that=20 > results in a very unstable signal , I remember down the=20 > Tottenham court road , there where tea chests of crystals , but > that was 1970 .. seems a lot of the traditional firms have=20 > closed , > One of the =A35 dds with a driver would work , but they wan= t > to keep it standard > DS - That's really the 'correct' situation , that -33 db > decode, -3 db lower than normal was a good indication that > the system is working , over ranging the a/d is the only=20 > problem . I think dynamic range is 60 d b after processing , > is it 3 db per bit ? 8 bits , 24 db + 3 that's 27 dB ?=20 > 500:1 ? , but by removing qty 2 mixers and 2=20 > oscillators , [ may be 3 oscillators 1 , hf-up-conv 2 , pll=20 > conv osc 3 ref osc ) that is a lot of noise + jitter=20 > removed from the signal path as well as imd from 2 mixers > , I found a attenuator helped for mw and I have a > mw-filter , which cleaned up sw bands ...... nice to have > a panoramic display , 2 mhz this time , the ra17 was 1 mhz=20 > and 28 valves + 20 ish > in the radio > 73-G. > > *From:* M0FMT > *Sent:* Thursday, April 11, 2013 10:47 AM > *To:* rsgb_lf_group@blacksheep.org > > *Subject:* Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 K= Hz > > OK Graham > Thought it was home brew retro.......... I am in that mode and > think everbody else is! What do you do at the moment inject a Sig > Genny? > Have you checked the net or checked out Vincent - QuartzLab etc? > Anyway what's that master osc circuit. I build from old RADCOM > (pre 1975 when they published real amateur radio) and PW,QST etal. > I use modern xtals with no known issues. Well trying to get third > overtone for 10m not to chirp is an issue with me at the moment. > OK yes got a stick on its way didn't want to tear up my existing > upconverter design. But not sure there is much wrong with the UC > approach it works for me. But want to try the direct approach. Do > you get much Cross mod and IM products? > > 73 es GL Pete M0FMT IO91UX > > *From:* Graham > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Thursday, 11 April 2013, 0:47 > *Subject:* Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 > 236.75 KHz > > Ok Pete > Q where to have them made ? > The set , Marconi Ocean span 1950's valve tx needs the=20 > big rock's as the oscillator pass's quite a lot of=20 > power via them ...hc6u are no good , drive level is very > low - the ones fitted are the wired- gold flashed ones , > so cannot etch into the band ... > the gang want to keep it standard > 73 -G. > Ps waiting for qty-3 =A36 dongles : ) > > *From:* M0FMT > *Sent:* Wednesday, April 10, 2013 11:43 PM > *To:* rsgb_lf_group@blacksheep.org > > *Subject:* Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 > 236.75 KHz > > Hi > If you want to spend a small fortune get them cut. However > build a Mixer VXO from El cheapo standard xtals and or old PMR > rocks. Then at your next rally buy a couple of Screw together > 10xj or FT243 rocks of any frequency and put the El-cheapo > xtals inside. And Hey Presto you have Retro rocks. > I have a small all valve 472 tx that uses 6.00 -6.472=3D0.472 > vxo-able a couple of kc/s 12ax7-6am6-6cl6=3D 4wattso/p. Local > QRP rig. > Hope this helps > 73 es GL Pete M0FMT IO91UX > > *From:* Graham > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Wednesday, 10 April 2013, 20:30 > *Subject:* LF: Wanted 10XJ or FT243 XTALS Range 236.25 > 236.75 KHz > > Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz > Q Is there any manufacture of crystals in this range ? > Or Surplus items available > QTY 1 or 2 off > TNX- Graham > G0NBD > > > > > > --=20 73 de pat g4gvw es gd dx qth nr Felixstowe East Coast UK --------------010707010100010801080707 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit
And Wireless Set No.17 for £2:19:6 (2Volt accumulator and HT Battery 10/- extra)

And we're all getting older!

73




On 11/04/13 12:18, M0FMT wrote:
Hi Graham
 
How young you are my introduction to Tottenham Court Road (Proops?) , Lisles Street (GW Smiths), Charring Cross  and The Edgeware Road  about 1956. Aaaaah those were the days. learnt a lot about Radio, Life, the Universe and everything there...... hee!
Got my R107 from Lisle Street with money save from my apprentices pay. Carried it  (abt 1 CWT) via bus to Kings Cross in the days when the conductor would jump off the bus and give you had to get it on board........ imagine that on a "Bendy Bus" today. See http://www.retinascope.co.uk/lislestreet.html for the full story.
 
OK on the stick info yes but I am CW only really can't get too excited about sterile data although as you know I do partake occasionally.
73 es GL Pete M0FMT IO91UX
From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Thursday, 11 April 2013, 11:52
Subject: Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz

R Pete
 
Well , its possible to  use the  emergency  vfo  , but that  results  in a very  unstable  signal , I   remember  down the  Tottenham court road , there  where  tea chests of  crystals , but that  was  1970 .. seems  a  lot  of the  traditional  firms have  closed ,
 
One  of the  £5  dds  with  a driver  would  work , but  they  want to  keep  it  standard
 
DS -   That's really  the  'correct'  situation  ,  that  -33 db decode, -3 db  lower than  normal  was  a  good  indication   that  the  system  is  working ,   over ranging  the  a/d  is the  only  problem . I think  dynamic  range is  60 d b after  processing  , is it   3 db per  bit  ?  8 bits  , 24  db + 3   that's   27 dB ?  500:1 ?   , but   by  removing    qty  2  mixers   and  2  oscillators   , [ may  be 3  oscillators  1 , hf-up-conv  2 , pll  conv osc  3  ref osc )  that  is a  lot  of  noise + jitter  removed  from the  signal  path as well  as   imd  from  2  mixers , I found  a attenuator  helped  for  mw  and  I have  a  mw-filter  , which  cleaned  up  sw  bands  ......  nice to  have a  panoramic  display , 2  mhz this time , the  ra17  was 1 mhz  and   28  valves + 20 ish  > in the  radio   
 
73-G.
 

From: M0FMT
Sent: Thursday, April 11, 2013 10:47 AM
Subject: Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz

OK Graham
 
Thought it was home brew retro.......... I am in that mode and think everbody else is! What do you do at the moment inject a Sig Genny?
 
Have you checked the net or checked out Vincent - QuartzLab etc?
 
Anyway what's that master osc circuit. I build from old RADCOM (pre 1975 when they published real amateur radio) and PW,QST etal. I use modern xtals with no known issues. Well trying to get third overtone for 10m not to chirp is an issue with me at the moment. 
 
OK yes got a stick on its way didn't want to tear up my existing upconverter design. But not sure there is much wrong with the UC approach it works for me. But want to try the direct approach. Do you get much Cross mod and IM products?

73 es GL Pete M0FMT IO91UX
From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Thursday, 11 April 2013, 0:47
Subject: Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz

Ok Pete
 
Q where to  have  them  made  ?
 
The  set  , Marconi  Ocean span 1950's  valve  tx   needs  the  big  rock's  as the  oscillator  pass's   quite a  lot  of  power  via them ...hc6u  are  no  good  , drive level is very low - the ones fitted  are the wired- gold  flashed  ones  , so  cannot  etch  into the  band ...
 
the  gang  want  to  keep  it  standard
 
73 -G.
 
Ps  waiting  for  qty-3  £6   dongles : )

From: M0FMT
Sent: Wednesday, April 10, 2013 11:43 PM
Subject: Re: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz

Hi
 
If you want to spend a small fortune get them cut. However build a Mixer VXO from El cheapo standard xtals and or old PMR rocks. Then at your next rally buy a couple of Screw together 10xj or FT243 rocks of any frequency and put the El-cheapo xtals inside. And Hey Presto you have Retro rocks.
I have a small all valve 472 tx that uses 6.00 -6.472=0.472 vxo-able a couple of kc/s 12ax7-6am6-6cl6= 4wattso/p. Local QRP rig.
Hope this helps
 
73 es GL Pete M0FMT IO91UX
From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Wednesday, 10 April 2013, 20:30
Subject: LF: Wanted 10XJ or FT243 XTALS Range 236.25 236.75 KHz

Wanted  10XJ  or  FT243  XTALS   Range   236.25    236.75  KHz   
 
Q  Is there  any  manufacture  of   crystals  in this  range  ?
 
Or  Surplus    items   available 
 
QTY 1  or  2  off 
 
TNX- Graham
 
G0NBD








-- 
73 de pat g4gvw
es gd dx
qth nr Felixstowe
East Coast UK
--------------010707010100010801080707--