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"Ian Field" <gangprobing.alien@ntlworld.com>: Oct 24 07:02PM +0100 "DaveC" <invalid@invalid.net> wrote in message news:0001HW.D066606206DB1E51B05399BF@news.eternal-september.org... > (using a current-limited power supply) and the same current draw is > measured.   > What is the purpose of this resistor?   There are such things as bidirectional transient suppressor diodes.   Although I've never seen it on a car relay - a resistor isn't impossible, it could act as a "Q-spoiler" to damp inductive ringing.   Or a bit more likely - a VDR.

Phil Hobbs <hobbs@electrooptical.net>: Oct 24 10:11PM -0400 On 10/24/2014 2:02 PM, Ian Field wrote:   > Although I've never seen it on a car relay - a resistor isn't > impossible, it could act as a "Q-spoiler" to damp inductive ringing.   > Or a bit more likely - a VDR.   Think of it as an RC snubber without the C. The capacitance will be whatever the coil and wiring supply.   Cheers   Phil Hobbs   -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics   160 North State Road #203 Briarcliff Manor NY 10510   hobbs at electrooptical dot net http://electrooptical.net

"Arfa Daily" <arfa.daily@ntlworld.com>: Oct 25 01:54PM +0100 > whatever the coil and wiring supply.   > Cheers   > Phil Hobbs   Don't you think that's starting to get a bit complicated Phil ? I would have thought that the amount of C in the coil and associated wiring was comparatively small - even given a car wiring loom. I reckon that its just a simple damping load across the L to encourage it not to 'ring' so fiercely as the field collapses ??   Arfa

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Oct 25 12:14PM -0400 On 10/25/2014 08:54 AM, Arfa Daily wrote: > just a simple damping load across the L to encourage it not to 'ring' so > fiercely as the field collapses ??   > Arfa   The reason you care about the ringing is primarily insulation degradation due to the peak voltage. If the parallel resistor is six times the coil resistance, the peak voltage kick will be close to six times the drive voltage of the relay (because the coil current wants to be constant).   That's how RC snubbers work, except that since they don't represent a DC load, you can use lower value resistors (with a tradeoff in switching speed, of course). The speed of the ringing is set mostly by the capacitance of the winding, unless the snubber resistor is very small.   Cheers   Phil Hobbs   -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics   160 North State Road #203 Briarcliff Manor NY 10510   hobbs at electrooptical dot net http://electrooptical.net

sam@repairfaq.org (Samuel M. Goldwasser): Oct 24 04:31PM -0400 Cydrome Leader <presence@MUNGEpanix.com> writes:   That is thorough testing.   One other thing to check is for cracked magnets on the magnetron. That can cause a no-heat symptom when everything lese tests good.   I've gotten original NOW/new magnetrons on eBay for under $20 so it's worth to simply replace. Then you'd have a spare if yours turned out to be good.   -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html   Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs.

Phil Allison <pallison49@gmail.com>: Oct 24 05:51PM -0700 Ricardo Abreu wrote:     > I am troubleshooting my microwave oven and I need your help/hints. > (Yes, I know the risks of microwave oven's troubleshooting, I know the security rules and this is not the first oven I repair with your aid. :)     ** That sounds like pure bullshit and bravado to me.   Your first small mistake may well be the last time you breathe.   FYI:   Most microwave ovens are not worth repairing and certainly not worth risking anyone's life to repair.   I will never help anyone fool about with one of the horrible things and I think discussing such repair work should be banned on usenet.       .... Phil

"Martin Crossley" <Martin@g8uwm.NOSPAMabelgratis.net>: Oct 25 03:32AM +0100 Phil Allison wrote:   > I will never help anyone fool about with one of the horrible things > and I think discussing such repair work should be banned on usenet.   > .... Phil   Mine has needed two relacement magnetrons and four pairs of lamps in 32 years. It's a Sharp Carousel with stainless steel cavity and was worth repairing. Over 4 times the cost of a magnetron for a new one. (OK, new ones with painted steel cavities are only slightly dearer than the magnetron, but they rust to death in 3 years.) It really isn't beyond the wit of man to ensure the HV capacitor is discharged safely when replacing the magnetron or to screw in replacement lamps without bothering...

Ricardo Abreu <meus.registos.online@gmail.com>: Oct 25 06:35AM -0700 Hi,   Thank you for the inputs.   Answering your questions:   - no, I do not own any high voltage probe, so I will not test HV; - I did not check for cracks in the magnetron so I will try this;   The oven is not the finest appliance on earth, but it does deserves a magnetron if that is the case. I just would like to be sure the magnetron is bad, because I am not willing to order a new magnetron just to find out the transformer is bad.   I do not own a repair shop, so it is kind of useless having expensive parts lying around as paperweights.

just fixed it <j.demate@gmail.com>: Oct 24 02:31PM -0700 > any suggestions.   > thanks!   > -Pete   Just fixed one of these and found this ancient thread. Thought I might put this up for people finding this thread. The carbon discs get burned, so go through the stack and discard any that have broken, then take a very fine sand paper (600 grit)and lightly sand both faces of each disc. Make up the space for any discards or accidentally broken while sanding discs with some small washers. It is important that the gap be filled with something strudy, not foil or steel wool. We don't want springinees to the stack. The discs are poor conductors and need to pushed very hard together to decrease the resistance, therefore increasing the motor speed. You don't want the little metal nub at the end of the tube that engages the arm to be mobile. Do not bend the leaf spring unless you think it has been changed, it's tension is set to not break the discs. Good luck.

N_Cook <diverse@tcp.co.uk>: Oct 25 02:09PM +0100 On 24/10/2014 22:31, just fixed it wrote:   >> thanks!   >> -Pete   > Just fixed one of these and found this ancient thread. Thought I might put this up for people finding this thread. The carbon discs get burned, so go through the stack and discard any that have broken, then take a very fine sand paper (600 grit)and lightly sand both faces of each disc. Make up the space for any discards or accidentally broken while sanding discs with some small washers. It is important that the gap be filled with something strudy, not foil or steel wool. We don't want springinees to the stack. The discs are poor conductors and need to pushed very hard together to decrease the resistance, therefore increasing the motor speed. You don't want the little metal nub at the end of the tube that engages the arm to be mobile. Do not bend the leaf spring unless you think it has been changed, it's tension is set to not break the discs. Good luck.   Good on you.   I went to an open day with these people http://www.tfsr.org/ they have a room , with expert retirees , repairing hand and powered sewing machines as well as all the carpentry and engineering tool repair/reconditioning

N_Cook <diverse@tcp.co.uk>: Oct 25 02:16PM +0100 On 25/10/2014 14:09, N_Cook wrote: > they have a room , with expert retirees , repairing hand and powered > sewing machines as well as all the carpentry and engineering tool > repair/reconditioning   just noticed this resource on their site http://www.tfsr.org/publications/technical_information/sewing_machine_manual/

N_Cook <diverse@tcp.co.uk>: Oct 25 02:04PM +0100 Roland RD300SX electric piano of 2004, incidently very different from the RD300S on http://www.synfo.nl/servicemanuals otherwise SM not found Meddling owner got inside to fix "scratchy" control. Removed all the under screws and then refitted mixing up PK and machine screws. Probably wrenched the 2 foil ribbons on taking the casing apart and then trapped a ribbon between a keyboard pylon and grounded aluminium foiled base chipboard. Intermittant loss of notes in the second octave. By the time I got inside , changed decay setting to maximum, and holding notes in that octave, no loss of any notes moving the cables, presumably as I wasn't in full flow and playing big heavy chords. Luckily not a CD sled type ribbon, and plenty of space here for a fudge repair. As one track on one edge only is damaged, as far as I can find , I'll try scraping back and mechanically bridging with cut-down phosphor bronze saddle from a small slide switch plus external clamping over that spot. I would normally fully disrupt the break and take a piece of enamelled copper wire from pcb to pcb, perhaps with a pair of turned-pin DIL socket socket pins to make a breakable union. (rather loathe to take a soldering iron to the main processor board) Anyone ever tried miniature rivets (good enough for pot construction), ?bridging with a piece of phosphor bronze strip from an analogue meter,say, plus mechanical clamping? woods metal low temp "soldering " over the break? ie anyone had success with some technique other than silver-loaded paint/car window heater-strip repair paint, which I don't think is reliable and don't use.

tyoung4639@comcast.net: Oct 25 02:48AM -0700 Where can I obtain schematics for the newer lcd and led flat screen TV's?

Tim Schwartz <tim@bristolnj.com>: Oct 25 08:17AM -0400 > Where can I obtain schematics for the newer lcd and led flat screen TV's?   In general, from the manufacturer's parts department, or one of their authorized parts distributors. A specific make and model would be useful info to post.   Regards, Tim

"Arfa Daily" <arfa.daily@ntlworld.com>: Oct 25 01:48PM +0100 <tyoung4639@comcast.net> wrote in message news:aa536ae3-f6c9-40de-bbae-706c95a0f4fc@googlegroups.com... > Where can I obtain schematics for the newer lcd and led flat screen TV's?   All over the place. Elektrotanya.com and eserviceinfo.com are first places to check. Google is your friend ...   Use the words "free schematic download" when searching. That will usually turn up service manuals if they're out there. Also learn to use the exclusion and inclusion operators in the Google search field to weed out irrelevant crap   Arfa

"Ian Field" <gangprobing.alien@ntlworld.com>: Oct 21 07:19PM +0100 "N_Cook" <diverse@tcp.co.uk> wrote in message news:m1re0t$5e3$1@dont-email.me... > If something is too good to be true ... > http://www.scientificamerican.com/article/lockheed-claims-breakthrough-on-fusion-energy1/     These guys?;   http://edition.cnn.com/TECH/space/9909/30/mars.metric.02/

junebug1701 <junebug1701@gmail.com>: Oct 24 10:44PM -0700 Some scientists seem skeptical:   Scientists Are Bashing Lockheed Martin's Nuclear Fusion 'Breakthrough'   http://www.businessinsider.com/scientists-bash-lockheed-on-nuclear-fusion-2014-10

Reinhard Zwirner <reinhard.zwirner@t-online.de>: Oct 21 10:04PM +0200 > Does it have any battery which after a few years needs replacement?   > Any chance I can find out what battery Curren M8039B uses so I only open it once?   > And see what's inside (schematics) before I risk breaking it?   Hi,   I don't know such piezo-type of watch.   On the other hand I own a watch which contains an electromagnetic generator which is driven by an automatic-type rotor. A supercap is charged by that generator and serves as power supply for a quartz movement. With a fully charged supercap the watch will work a few days without arm movement.   <http://www.seikowatches.com/world/technology/kinetic/index.html>   HTH   Reinhard

"Gareth Magennis" <gareth.magennis@ntlworld.com>: Oct 24 07:02PM +0100 "bud--" wrote in message news:54494ed0$0$44150$c3e8da3$3a1a2348@news.astraweb.com...   On 10/22/2014 3:23 PM, amdx wrote:   >> 4. Diode   > Slowest Opening. > Most damage to contacts.     http://web.archive.org/web/20110104003731/http://relays.tycoelectronics.com/appnotes/app_pdfs/13c3264.pdf             Thanks for that link. Interesting indeed.     Gareth.

bleachbot <bleachbot@httrack.com>: Oct 24 03:37PM +0200

BV BV <bv8bv8bv8@gmail.com>: Oct 24 06:37AM -0700 Women's Rights in Islam   Islam is the sole religion that gave women her rights, these are so many and recorded in the Quran verses and the traditional sayings of the prophet, these rights are condensed in points here as holy texts, if all written, will take many pages.   Equality between man and women   Islam acquits Eve from the original Sin which lived through generation and women have to bear it. In Quran God has remitted this sin the moment it was committed.   Women have the same spiritual status as men in the eye of God.     Female Embryo's rights   A female embryo, like a male embryo, should be guarded against hereditary disease.   Females' rights in infantry   While in other religions the birth of a female is not always welcome, the birth of a female is celebrated in Islam.   Females like males should be given beautiful names.   Females like males are to be given love while still children without any preference of one sex over another as stated in the prophet's hadith.   Islam is against denigrating females in any way especially killing them during their infantry- an old custom practiced by the pagan Arabs.   Rights of Females over Parents   Females are to receive the due care and be brought up in the best way( God's reward for this is shielding parents against the hellfire and raising their ranks high up to that of the prophet as stated in the hadiths). Even Female slaves are to be taught, this is doubly rewarded by God.   Teaching females is mandatory in Islam.   A female(married or unmarried) has the right to inherit her father, mother, husband , her children, sisters and daughters( Note that Females in Judeo-Christianity inherit only from their parents in case no brothers are found)   A female is not to be killed in wars.   A female chastity is to be given high care.   Parents should not favor sons over daughters   A woman has the right to argue with men even with the prophet himself.   Women are equal to men as stated in the hadith" Women are sisters to men."   A woman, just like a man, can give someone the right of refuge and security among the Muslims.   Rights of Wives   A female has the right to choose her husband.   A wife has the right to manage her property and the husband should not take any of her property.   A wife is not responsible for spending on her family, it is not allowed for a husband to take a penny from her property.     A wife has the full right to her dowry ( The husband is not to take any from it )   A wife can divorce herself if she doesn't like her husband.   A husband is responsible for feeding, dwelling, taking the utmost care of his wife to the extent that raising a piece of bread to a wife's mouth will be rewarded by God)   A wife should be given her full right in bed and even such an act is rewarded by God because the husband and the wife are sinners if they commit adultery.   During menses, contrary to the holy Book, a woman can live among her family members and whoever touches her remains clean.   The best among the Muslims are those who are good to their wives.   As a Mother   To show how important is the obedience of mothers the prophet says "paradise is under the feet of mothers."   Though both the father and the mother are to be given the utmost care, a mother should be always at the top priority.   Mothers should always be given due care from her children   A son must not prefer his wife to his mother under any circumstances.   A Muslim should ask for his parent permission before joining the Muslim army, which is engaged in fighting.   Caring about parents is more preferred to fighting in the cause of God, if they are old and need care.   A mother, like father, is to be given the utmost care and be obeyed even if she is not a Muslim.   The rights of the divorced woman in Islam   The Faith of Islam has ordained certain financial and social obligations in the event of divorce, so as to discourage people from resorting to it.   Islam ordains that when a man divorces his wife, he must pay her the delayed dowry agreed upon in the marriage contract, in addition to the expense of her maintenance of food, drink and living quarters for a certain period of time, known as the " iddat ".   The custody of the children is granted to the mother until they grow up. In the event of her death or inability to look after her children, the custody of her children is granted to her relations.   The husband is legally and religiously charged with his children's financial maintenance, and for wet nurses to breast feed them even if their mother breast feeds them herself, as is stated in the following Quranic verse "And if they suckle your (offspring) give them their recompense "[1][12]   Rights of a widow   The whole of the Islamic society is responsible for financing her.   Widows are protected in Islam from their in-laws, but are forced and not protected in the Bible's NT and OT   As a widow   Allah (Glory be to Him) says in a Divine Hadith: "I only accept Salah from those who do it humbly to My Glory those who spend the day in mentioning me, and takes care of widows, the needy, and the wayfarer."   Dead mothers   Her children are to ask Allah for remitting her sins and ask Allah to have mercy on her.   Her children are to honor her relatives and friends.   Children can do righteous acts for them ( optional)   After one's mother dies, it is Sunnah to fulfill any vows that she had made, and to give charity and perform Hajj and 'Umrah on her behalf.   After she dies, it is also Sunnah to honour her by maintaining ties with those whom she used to keep in touch with, such as her relatives and friends.       http://www.quran-m.com/firas/en1/index.php/human/496-women-s-rights-in-islam,condensed.html   Thank you

Adrian Caspersz <email@here.invalid>: Oct 24 12:29PM +0100 > I have a udm50 with draw problems. Is it possible for to send me the alignment diagrams?   > Thanks   > Peter   http://elektrotanya.com/sanyo_3cd_changer_mechanism.pdf/download.html   -- Adrian C

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