Return-Path: Received: from mtain-dh02.r1000.mx.aol.com (mtain-dh02.r1000.mx.aol.com [172.29.65.22]) by air-me06.mail.aol.com (v129.4) with ESMTP id MAILINME063-8bb64d6e71a566; Wed, 02 Mar 2011 11:34:45 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh02.r1000.mx.aol.com (Internet Inbound) with ESMTP id B64CB3800027F; Wed, 2 Mar 2011 11:34:43 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Puozd-0007ZT-QK for rs_out_1@blacksheep.org; Wed, 02 Mar 2011 16:33:41 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Puozc-0007ZK-KB for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 16:33:40 +0000 Received: from nm1-vm0.bullet.mail.ukl.yahoo.com ([217.146.183.224]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Puozc-0000kG-F3 for rsgb_lf_group@blacksheep.org; Wed, 02 Mar 2011 16:33:40 +0000 Received: from [217.146.183.184] by nm1.bullet.mail.ukl.yahoo.com with NNFMP; 02 Mar 2011 16:33:34 -0000 Received: from [217.146.183.179] by tm15.bullet.mail.ukl.yahoo.com with NNFMP; 02 Mar 2011 16:33:34 -0000 Received: from [127.0.0.1] by omp1020.mail.ukl.yahoo.com with NNFMP; 02 Mar 2011 16:33:34 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 154460.75489.bm@omp1020.mail.ukl.yahoo.com Received: (qmail 60952 invoked by uid 60001); 2 Mar 2011 16:33:34 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1299083613; bh=rOaVdNrBklUQQaUK4m9XUtdRv/FZNFTrqy4nhOUSA4I=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=QuDzeaCi7AXNr/F4rnvtLWrULPwIjPW5f9qgqXrbphF11pRbToL3cQ7rL+LNpzfhTtvGuH4bj6zomgxtJiIKvWkuWZm33M00u4k3V2rH/GMt7ewkU8VSWHooixI93MtoVvHgitOdRBNgB9N/8f+qyKr7mZjyGNp+tfHgntrV7M4= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=wSW9IvESEAVtBoLhNVJ5da7DZt44PukT54gU7e5Wyu6d5OKVUXGenDZIUSXkhy3J0caoqtzKwagXpNKqeev0Zf7K7wGo1jOna+OXX1HggX0lSNApB/l21blDE6VjGFJTff6+8AJi9EnlD91MSmYnnAAB0wbxB8FF61N2ZZTdgjk=; Message-ID: <895923.59342.qm@web28107.mail.ukl.yahoo.com> X-YMail-OSG: 0.rSToEVM1kO4ffZ6sL9Djs3cw.Z7xKdE0P96yPY1bUdBbC nqyKtcqujLGcYDIG.SPH_7O3hePeq.UHKOvBfHhfGQWxSsXhGLPa_UTMkKy6 5LNfE0hKu4_BXqy_GtGHDgArkrsrOQ3Gglpz9v9FTg2SjVS7zQQ1VYiCuALW iQv9x7OeKZNvIvBx_HRtybE8rjjkodjMm_ZFlueTamQ1VbJ6aIw6KES9YPDW Mh2Z1SAvg3s_4s_CdwVknmohM6b6ryPmJgFetUAy5vG.81O7HI2V7GGdUxgy iNUJQLodmtI3HjkLq66XWI9Q- Received: from [86.139.92.60] by web28107.mail.ukl.yahoo.com via HTTP; Wed, 02 Mar 2011 16:33:33 GMT X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.109.292656 References: <4D6D4542.28569.16DBCA9@mike.dennison.ntlworld.com> <4D6D514A.4040602@talktalk.net> <4D6D5477.3050909@iup.uni-heidelberg.de> <547005.33817.qm@web28101.mail.ukl.yahoo.com> <779B1D72-F075-4637-9044-D36E3DFFAE67@numeo.fr> Date: Wed, 2 Mar 2011 16:33:33 +0000 (GMT) From: M0FMT To: rsgb_lf_group@blacksheep.org In-Reply-To: <779B1D72-F075-4637-9044-D36E3DFFAE67@numeo.fr> MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: Re: LF: Low energy bulbs Content-Type: multipart/alternative; boundary="0-967541745-1299083613=:59342" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: *** X-Spam-Status: No, hits=3.1 required=5.0 tests=AMATEUR_PORN,HTML_70_80, HTML_FONT_BIG,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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d228.1 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1d41164d6e71a315e8 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --0-967541745-1299083613=:59342 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable John I have had a mail from Eddie who has had spectacular results with 10m= eg TX=20 made exclusively from these bits (apart from the rock of course). These things can be a cheaper source of parts that any supplier my wife ha= s not=20 long ago bought=A0three SFLs for 50p. They are useless as lights but a Gol= dmine=20 for bits. The=A0enforced change to these things is shear Lunacy of course=A0but I am= happy=20 with cheap bits. 73 es GL Pete M0FMT IO91UX=20 ________________________________ From: John Rabson To: rsgb_lf_group@blacksheep.org Sent: Wed, 2 March, 2011 10:49:26 Subject: Re: LF: Low energy bulbs Fifty plus soldered joints, and such lamps don't seem to last much longer= than=20 tungsten ones here. =A0I wonder what the whole-life energy costs are compa= red with=20 filament lamps.=20 John F5VLF On 1 Mar 2011, at 23:21CET, M0FMT wrote: Hi LF > >If you are a Amateur like me=A0trying to find=A0components the cheap way= then this=20 >may be for you;- > >9W Philips so called energy saving SFL=20 >=A0 =A0 =A0 =A0 =A0=20 >Item Component >type Electrical >value Units Spec=20 >1 Resistor 5 Ohm 0.125W=20 >2 Resistor 5 Ohm 0.125W=20 >3 Resistor 1 Ohm 0.125W=20 >4 Resistor 700000 Ohm 0.125W=20 >5 Resistor 387000 Ohm 0.125W=20 >6 Resistor 48 Ohm 0.25W=20 >7 Capacitor 100 nF Poly ?=20 >8 Capacitor 23 nF Poly ?=20 >9 Capacitor 2.3 nF Poly ?=20 >10 Capacitor 1.6 nF Poly ?=20 >11 Capacitor 2.2 Elec Micro F 350Vw=20 >12 Inductor 2.795 mH Laminate=A0=A0Core=20 >13 Inductor 2.28 mH Ferite Cylinder=20 >14 Inductor 131 (for 9T) micro H Toroid R10 N30=20 >15 Transistor DK51 =A0 Bipolar=20 >16 Transistor DK51 =A0 Bipolar=20 >17 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >18 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >19 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >20 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >21 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >22 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >23 Diode 1N4007 1000V - 1A Gen Purp Rectifier=20 >24 Diode !N4141 Fast switch small signal det=20 > > >From this I have made a low power xtal controled Tx for 80m. and the Flur= escent=20 >tube which always seems to be OK in "Failed" SFLs serves as a fine and=20 >spectacular=A0RF indicator when located next to your LF antenna up lead. >Failed SFL units are a useful source of parts to the real Amateur. >Pictures available on request. >73 es GL Pete M0FMT IO91UX=20 > > > > > ________________________________ From:=A0Stefan Sch=E4fer >To:=A0rsgb_lf_group@blacksheep.org >Sent:=A0Tue, 1 March, 2011 20:17:59 >Subject:=A0Re: LF: Low energy bulbs > >Regarding energy bulbs, maybe it is an idea to put a well designed=A0EMI= =20 >filter=A0into the bulb cable, as close as possible? > >73, Stefan/DK7FC > >Am 01.03.2011 21:04, schrieb=A0qrss@talktalk.net:=20 >I have one CFL at the moment which gives the same pattern on 24kHz. Over= the=20 >years I have had all makes play up, one decided to wipe out 10MHz, that= was due=20 >to a dry joint on a suppression capacitor. Dry joints have also caused ot= her=20 >interference and total failure. I=A0 have dismantled several CFL's, poor= soldered=20 >joints are rife in them, some components can often be pulled dry from the= PCB. >>=A0Some designs are a nice source of a VLF ring core, material / type un= known, I=20 >>have used them for coupling on two 500kHz / 136kHz multi turn RX Loops. >> >>As for filament lamps, there is always the classic 'candle bulb effect'= which=20 >>wipes out=A0 analogue TV, I did have the pleasure of finding one of thos= e in a=20 >>customers house once. >> >>Eddie G3ZJO >> >>On 01/03/2011 19:13, Mike Dennison wrote:=20 >>Today I noticed QRM on 136kHz that started when my wife switched a ligh= t on in=20 >>our spare room. It had a low energy bulb by Status, and was marked "11W= ,=20 >>220-240V, 50/60Hz, 100mA". It is described on their web site as "stick= type"=20 >>and is bayonet fitting. The QRM consisted of rapidly changing noise swe= eping=20 >>back and forth across the band (see attached pic). I replaced it with= a=20 >>Philips Genie WW287 light which did not seem to generate any noise. Th= e other=20 >>low energy lights in the house are General Electric E27-ES 11W bulb typ= es which=20 >>are very slow to get to full brightness, but are low QRM at LF. The res= t are=20 >>ancient filament types which are completely QRM-free of course. So if= you have=20 >>this noise, perhaps it's one of your light bulbs. Mike, G3XDV =3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D =20 >> >>> The following section of this message contains a file attachment prepa= red for=20 >>>transmission using the Internet MIME message format. If you are using= Pegasus=20 >>>Mail, or any other MIME-compliant system, you should be able to save it= or view=20 >>>it from within your mailer. If you cannot, please ask your system admin= istrator=20 >>>for assistance. ---- File information ----------- File: xdv00= 137.jpg =20 >>>Date: 1 Mar 2011, 19:10 Size: 22457 bytes. Type: JPEG-imag= e =20 >>> > > > =20 --0-967541745-1299083613=:59342 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
John I have had a mail from Eddie who has had spectacular results wit= h 10meg TX made exclusively from these bits (apart from the rock of course= ).
 
These things can be a cheaper source of parts that any supplier my wi= fe has not long ago bought three SFLs for 50p. They are useless as li= ghts but a Goldmine for bits.
 
The enforced change to these things is shear Lunacy of course&nb= sp;but I am happy with cheap bits.
 
73 es GL Pete M0FMT IO91UX=20

=
From: John Rabson <john= .rabson@numeo.fr>
To: rsgb_lf_group@blacksheep.org
Sen= t: Wed, 2 March, 2011 10:49:26
Subject: Re: LF: Low energy bulbs

F= ifty plus soldered joints, and such lamps don't seem to last much longer= than tungsten ones here.  I wonder what the whole-life energy costs= are compared with filament lamps.=20

John F5VLF

On 1 Mar 2011, at 23:21CET, M0FMT wrote:

Hi LF
 
If you are a Amateur like me trying to fin= d components the cheap way then this may be for you;-
 
9W Philips so called energy saving SFL
  =   =   =   &n= bsp;
Item Component
type		 Electrical
value		 Units Spec
1 Resist= or 5 Ohm 0.125W
2 Resist= or 5 Ohm 0.125W
3 Resist= or 1 Ohm 0.125W
4 Resist= or 700000= Ohm 0.125W
5 Resist= or 387000= Ohm 0.125W
6 Resist= or 48 Ohm 0.25W
7 Capaci= tor 100 nF Poly ?
8 Capaci= tor 23 nF Poly ?
9 Capaci= tor 2.3 nF Poly ?
10 Capaci= tor 1.6 nF Poly ?
11 Capaci= tor 2.2 El= ec Micro= F 350Vw
12 Induct= or 2.795<= /FONT> mH Laminate=   Core
13 Induct= or 2.28 mH Ferite= Cylinder
14 Induct= or 131 (f= or 9T) micro= H Toroid= R10 N30
15 Transi= stor DK51  = Bipolar<= /FONT>
16 Transi= stor DK51  = Bipolar<= /FONT>
17 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
18 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
19 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
20 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
21 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
22 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
23 Diode<= /FONT> 1N4007= 1000V= - 1A Gen Purp= Rectifier
24 Diode<= /FONT> !N4141 Fast swi= tch small sign= al det
 

From this I have made a low power xtal cont= roled Tx for 80m. and the Flurescent tube which always seems to be OK in= "Failed" SFLs serves as a fine and spectacular RF indicator when loc= ated next to your LF antenna up lead.
Failed SFL units are a useful source of parts= to the real Amateur.
Pictures available on request.
 
73 es GL Pete M0FMT IO91UX=20


From: Stefan Sch=E4fer <schaefer@iup.uni-heidelberg.de>
= To: rsgb_lf_group@blacksheep.org
Sent: Tu= e, 1 March, 2011 20:17:59
Subject:=  Re: LF: Low en= ergy bulbs

Regarding energy bulbs, maybe it is an idea to pu= t a well designed EMI filter&n= bsp;into the bulb cable, as close as possible?

73, Stefan/DK= 7FC

Am 01.03.2011 21:04, schrieb qrss@talktalk.net:=20
I have one CFL at the moment which gives the sam= e pattern on 24kHz. Over the years I have had all makes play up, one decid= ed to wipe out 10MHz, that was due to a dry joint on a suppression capacit= or. Dry joints have also caused other interference and total failure. I&nb= sp; have dismantled several CFL's, poor soldered joints are rife in them,= some components can often be pulled dry from the PCB.
 Some desig= ns are a nice source of a VLF ring core, material / type unknown, I have= used them for coupling on two 500kHz / 136kHz multi turn RX Loops.
As for filament lamps, there is always the classic 'candle bulb effect'= which wipes out  analogue TV, I did have the pleasure of finding one= of those in a customers house once.

Eddie G3ZJO

On 01/03/20= 11 19:13, Mike Dennison wrote:=20 
Today I noticed QRM on 136kHz that started=
 when my wife switched a=20
light on in our spare room. It had a low energy bulb by Status, and=20
was marked "11W, 220-240V, 50/60Hz, 100mA". It is described on their=20
web site as "stick type" and is bayonet fitting. The QRM consisted of=20
rapidly changing noise sweeping back and forth across the band (see=20
attached pic).

I replaced it with a Philips Genie WW287 light which did not seem to=20
generate any noise.

The other low energy lights in the house are General Electric E27-ES=20
11W bulb types which are very slow to get to full brightness, but are=20
low QRM at LF. The rest are ancient filament types which are=20
completely QRM-free of course.

So if you have this noise, perhaps it's one of your light bulbs.

Mike, G3XDV
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D


    

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