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boundary="0-2067444205-1299018113=:33817" 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-d238.2 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1db4054d6d71dc3740 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --0-2067444205-1299018113=:33817 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi LF=20 If you are a Amateur like me=A0trying to find=A0components the cheap way= then this=20 may be for you;-=20 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 Core=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 Flure= scent=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: Stefan Sch=E4fer To: rsgb_lf_group@blacksheep.org Sent: Tue, 1 March, 2011 20:17:59 Subject: Re: LF: Low energy bulbs Regarding energy bulbs, maybe it is an idea to put a well designed EMI fil= ter=20 into the bulb cable, as close as possible? 73, Stefan/DK7FC Am 01.03.2011 21:04, schrieb qrss@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 wa= s due=20 to a dry joint on a suppression capacitor. Dry joints have also caused oth= er=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 unk= nown, 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 those= 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 light= 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 swee= ping=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. The= other=20 >low energy lights in the house are General Electric E27-ES 11W bulb type= s which=20 >are very slow to get to full brightness, but are low QRM at LF. The rest= 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 prepar= ed for=20 >>transmission using the Internet MIME message format. If you are using Pe= gasus=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 admini= strator=20 >>for assistance. ---- File information ----------- File: xdv001= 37.jpg =20 >>Date: 1 Mar 2011, 19:10 Size: 22457 bytes. Type: JPEG-image= =20 >> =20 --0-2067444205-1299018113=:33817 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hi LF
 
If you are a Amateur like me trying to find components the= cheap way then this may be for you;-
 
<= /TR> <= /TR>
9W Philips so called energy saving SFL
         
<= STRONG>Item Component
type		 Electrical
value		 Units Spec
1 Resistor 5 Ohm 0.125W
2 Resistor 5 Ohm 0.125W
3 Resistor 1 Ohm 0.125W
4 Resistor 700000 Ohm 0.125W
5 Resistor 387000 Ohm 0.125W
6 Resistor 48 Ohm 0.25W
7 Capacitor 100 nF Poly ?
8 Capacitor 23 nF Poly ?
9 Capacitor 2.3 nF Poly ?
10 Capacitor 1.6 nF Poly ?
11 Capacitor 2.2 Elec Micro F 350Vw
12 Inductor 2.795 mH Laminate  Core
13 Inductor 2.28 mH Ferite Cylinder
14 Inductor 131 (for 9T) micro H Toroid R10 N30
15 Transistor<= /TD> DK51   Bipolar
16 Transistor<= /TD> DK51   Bipolar
17 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
18 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
19 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
20 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
21 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
22 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
23 Diode 1N4007 1000V - 1A<= /TD> Gen Purp Rectifier
<= FONT face=3DCalibri>24 Diode !N4141 Fast switch small signal det
 

From this I have made a low power xtal controled 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 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: Stefan Sch=E4fer <= ;schaefer@iup.uni-heidelberg.de>
Sent: Tue, 1 March, 2011 20:17:59
Subject: Re: LF: Low energy bulbs

Regarding energy bulbs, maybe it is an idea to put a well designed= EMI filter into the bulb cable, as close= as possible?

73, Stefan/DK7FC

Am 01.03.2011 21:04, schrieb= qrss@ta= lktalk.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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