- Why should someone replace ALL the capacitors on old Tube equipment? - 4 Updates
- Birdbrain Macaw (now "James Wilkinson" LOL), the Sociopathic Attention Whore - 4 Updates
- LASOS HeNe module: LGK 7654-15 specs? - 2 Updates
- [FoxNews]A small town's sudden power surge fried tech gear in hundreds of homes - 12 Updates
- need help with azus motherboard- AT31ont-1 - 1 Update
- Digital Thermostat Quit Working - 2 Updates
oldschool@tubes.com: Feb 08 03:34PM -0600 >SO that's the sort of thing knowledge that is out there for people coming >to an old receiver for the first time. > Michael What is a " mechanical filter"? |
"Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com>: Feb 08 09:47PM <oldschool@tubes.com> wrote in message news:im3n9c5c1ogspq5fk6nb93htrel23fhn4u@4ax.com... >>to an old receiver for the first time. >> Michael > What is a " mechanical filter"? Pretty much what the name says it is. Usually a row of disks with a mechanical resonant frequency, AFAIK: the transducers at each end were usually inductive, but I believe there were piezo types. At one time they were the most common type of IF selectivity in Ham radio and other communications gear. |
Michael Black <et472@ncf.ca>: Feb 08 08:20PM -0500 |
Foxs Mercantile <jdangus@att.net>: Feb 08 07:27PM -0600 > What is a " mechanical filter"? <http://www.wa3key.com/filters.html> -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com |
The Peeler <finishingoff@TheRevd.invalid>: Feb 08 09:18PM +0100 On Wed, 08 Feb 2017 19:46:14 -0000, Birdbrain Macaw (now "James Wilkinson"), the pathological attention whore of all the uk ngs, blathered again: >> "We were fortunate that nobody was hurt," Tracy Zents, the director of >> Jefferson County's Department of Emergency Services, told AP. > You should have anything expensive in a UPS. UPS, in your case, means You Pile of Shit! -- Birdbrain Macaw (now "James Wilkinson") about himself: "I can sleep outside in a temperature of -20C wearing only shorts". "I once took a dump behind some bushes and slid down a hill to wipe my arse". (Courtesy of Mr Pounder) |
The Peeler <finishingoff@TheRevd.invalid>: Feb 08 11:09PM +0100 On Wed, 08 Feb 2017 22:00:24 -0000, Birdbrain Macaw (now "James Wilkinson"), the pathological attention whore of all the uk ngs, blathered again: >> house from the line. Never had the urge to do it myself, but it might >> be good insurance. > Wouldn't a really big surge destroy the first thing it hits, i.e. the main fuse, meter, etc? Your "fuse" in your "brain obviously blew already long time ago, Birdbrain! -- More of Birdbrain Macaw's (now "James Wilkinson" LOL) sociopathic "wisdom": "No ginger is ever sexy. They are faulty people, like albinos. Put them all in the sun and watch them burn!" MID: <op.yuhmrboijs98qf@red.lan> |
The Peeler <finishingoff@TheRevd.invalid>: Feb 08 11:44PM +0100 On Wed, 08 Feb 2017 22:18:12 -0000, Birdbrain Macaw (now "James Wilkinson"), the pathological attention whore of all the uk ngs, blathered again: > protect against little spikes, or voltages about 30V under/over what they > should be. My UPS frequently adjusts the voltage, and sometimes gives up > and runs the house on batteries for 5 seconds. Yet another naive American who has to learn with what kind of an idiot he is "conversing", eh, Birdbrain? <BG> -- Birdbrain Macaw (now "James Wilkinson") about himself: "I can sleep outside in a temperature of -20C wearing only shorts". "I once took a dump behind some bushes and slid down a hill to wipe my arse". (Courtesy of Mr Pounder) |
The Peeler <finishingoff@TheRevd.invalid>: Feb 09 01:39AM +0100 On Thu, 09 Feb 2017 00:21:25 -0000, Birdbrain Macaw (now "James Wilkinson"), the pathological attention whore of all the uk ngs, blathered again: >> appliances. The transformer made a BIG BANG when the circuit protector >> blew. > Pity it didn't electrocute the truck driver. Pity they won't use electroshock on you because of your birdbrain, Birdbrain! -- Birdbrain Macaw's (now "James Wilkinson" LOL) sociopathic "mind" at work: "I treat cyclists wearing the same clothes as pedestrians as pedestrians." MID: <op.yum2se0mjs98qf@red.lan> |
sam@repairfaq.org (Samuel M. Goldwasser): Feb 08 04:15PM -0500 > contacted LASOS. It is a recent model as far as He-Nes go so I am a > bit surprised I can't find more info. Could this be a slightly > customised version of a catalogue model? The closest on the LASOS Web site is the 7654-13, red (633 nm) 10 mW, 6.5 mA, 2.9-3.1 kV. https://www.lasos.com/fileadmin/user_upload/products/he-ne/Datenblaetter/LGK_7654-13.pdf The -15 is probably the same tube sorted for slightly higher power. Confirm by checking dimensions. -- 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. |
AlexPelocho <alextsekenis@gmail.com>: Feb 08 04:31PM -0800 Thanks Sam. Dimension-wise it is identical to the -8 type. Besides the dimensions, I cannot see any other physical or performance differences between the -8 and -13. Even the weight is shown to be the same. The type numbers on the labels (according to the datasheets) are different: -8 has 577009-1153-000 -13 has 577009-1161-000 and mine, the -15, has 577009-1169-000 So maybe the -15 is the -8 package with a binned tube. In any case a 6.5 mA supply rather than a 7 mA should work without overload. I have emailed LASOS but I won't hold my breath. Alex |
moroney@world.std.spaamtrap.com (Michael Moroney): Feb 08 05:11PM >component, according to an AP report. Local media said that "damage >ranged from residents losing a refrigerator to losing all appliances in >the kitchen or losing everything in the house." Interesting how a failed insulator could have caused this. How often are distribution circuits of different voltages connected together but separated by only a single insulator? Up the street from me, they upgraded a MV distribution circuit from a lower voltage to a higher one (13,800V I believe). But a portion of it they decided to leave at the lower voltage, probably because there are a bunch of pad-mounted transformers feeding businesses there they didn't want to replace. They decided to feed that section from the far end through a bank of transformers, but where that section was once connected to the now upgraded section, they put in multiple breaks so that a single failed insulator or a lineman doing the wrong thing won't connect the two circuits. An underground feeder had its fuses removed, wires connecting the fuse holders were removed and the line from the pole with the underground feeder to the next pole had insulators spliced in the middle. At least 3 breaks. I've also seen the results of that type of surge. The top of a pole broke in a storm and the 4800V MV distribution wires made contact with the 120V/240V feed to houses. Two of them burned to the ground. |
"Mr. Man-wai Chang" <toylet.toylet@gmail.com>: Feb 09 03:41AM +0800 On 9/02/2017 1:11 AM, Michael Moroney wrote: > I've also seen the results of that type of surge. The top of a pole broke > in a storm and the 4800V MV distribution wires made contact with the > 120V/240V feed to houses. Two of them burned to the ground. Thank you for sharing! -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa |
"James Wilkinson Sword" <imvalid@somewear.com>: Feb 08 07:46PM > town. > "We were fortunate that nobody was hurt," Tracy Zents, the director of > Jefferson County's Department of Emergency Services, told AP. You should have anything expensive in a UPS. -- A highway patrolman pulled alongside a speeding car on the freeway. Glancing at the car, he was astounded to see that the blonde behind the wheel was knitting! Realizing that she was oblivious to his flashing lights and siren, the trooper cranked down his window, turned on his bullhorn and yelled, "PULL OVER!" "NO!" the blonde yelled back, "IT'S A SCARF!" |
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Feb 08 04:55PM -0500 On 02/08/2017 02:46 PM, James Wilkinson Sword wrote: >> "We were fortunate that nobody was hurt," Tracy Zents, the director of >> Jefferson County's Department of Emergency Services, told AP. > You should have anything expensive in a UPS. Big help if the house burns down. :( I've heard of folks getting MOVs put in right at the meter, outside the house. In that sort of super nasty surge, they explode and isolate the house from the line. Never had the urge to do it myself, but it might be good insurance. 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 |
"James Wilkinson Sword" <imvalid@somewear.com>: Feb 08 10:00PM > house. In that sort of super nasty surge, they explode and isolate the > house from the line. Never had the urge to do it myself, but it might > be good insurance. Wouldn't a really big surge destroy the first thing it hits, i.e. the main fuse, meter, etc? -- What's the difference between PMS and Mad Cow Disease? The number of tits. |
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Feb 08 05:13PM -0500 On 02/08/2017 05:00 PM, James Wilkinson Sword wrote: >> be good insurance. > Wouldn't a really big surge destroy the first thing it hits, i.e. the > main fuse, meter, etc? It matters where the big arc happens, though. You don't clear a high energy 1600-4800V circuit with a domestic 240V breaker, that's for sure. The result is an _arc flash_, which you do _not_ want in your vicinity, trust me. (Youtube has a lot of examples if you doubt this.) Having a major league arc flash on a cinderblock foundation outside the house is a very different proposition from having one in a breaker box mounted to a wooden stud wall inside, for one thing, but I'm outside my experience here, so I'll happily defer to any actual power engineering types who want to chime in. 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 |
"James Wilkinson Sword" <imvalid@somewear.com>: Feb 08 10:18PM > mounted to a wooden stud wall inside, for one thing, but I'm outside my > experience here, so I'll happily defer to any actual power engineering > types who want to chime in. I can't believe it's that likely for 4800V to get onto a 240V line. Possible, but so rare it's not worth bothering to install protection. I protect against little spikes, or voltages about 30V under/over what they should be. My UPS frequently adjusts the voltage, and sometimes gives up and runs the house on batteries for 5 seconds. -- If the English language made any sense, lackadaisical would have something to do with a shortage of flowers. |
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Feb 08 05:22PM -0500 On 02/08/2017 05:18 PM, James Wilkinson Sword wrote: > protect against little spikes, or voltages about 30V under/over what > they should be. My UPS frequently adjusts the voltage, and sometimes > gives up and runs the house on batteries for 5 seconds. Well, I bought my house in 1990, and still haven't done that, so I guess you can say I agree. ;) Cheers Phil Hobbs |
"James Wilkinson Sword" <imvalid@somewear.com>: Feb 08 10:32PM >> gives up and runs the house on batteries for 5 seconds. > Well, I bought my house in 1990, and still haven't done that, so I guess > you can say I agree. ;) I got my house in 2000. I got a UPS for the computer to keep it from crashing and corrupting the hard disk with 5 second powercuts. But when I got some LED lighting and it kept failing, I paid more attention to the UPS and noticed it was frequently reporting overvoltage. Connecting all the house lighting to the UPS prevented the LEDs from failing so often. The overvoltage takes the 230V up to about 256V, but apparently this is within specs, so the power company refuses to fix it. It started happening when they renewed the street's transformer (substation). They did send an electrician round, but he said there was nothing he could do, although he did comment that the guy responsible for voltage regulation in my area wasn't as fussy as he was. He claimed he liked to set things to precisely 230V, and the new guy just let it go if it was within the 10% legally allowed. I kept a close eye on the voltage, and it never gets below (or even down to) 230V, so clearly it's not averaging the correct value, and should be adjusted more accurately, but the power company doesn't give a shit. |
"Colonel Edmund J. Burke" <burkesgurlz@t-girls.com>: Feb 08 02:57PM -0800 I'll take two tacos and a side of frys. |
clare@snyder.on.ca: Feb 08 07:17PM -0500 On Wed, 8 Feb 2017 17:22:27 -0500, Phil Hobbs >you can say I agree. ;) >Cheers >Phil Hobbs A truck hit a padmounted transformer about 100 ft from my dad's house, shorting the primary to the secondaty momentarily before tripping the fuse. It blew the fuse in his then- new TV and blew one or two bulbe - but destroyed half the appliances in the house next door. I fixed the TV - Dad replaced the bulbs, and Waterloo North Hydro's and the truck driver's insurance replaced the neighbours appliances. The transformer made a BIG BANG when the circuit protector blew. |
"James Wilkinson Sword" <imvalid@somewear.com>: Feb 09 12:21AM > Hydro's and the truck driver's insurance replaced the neighbours > appliances. The transformer made a BIG BANG when the circuit protector > blew. Pity it didn't electrocute the truck driver. -- During the weekly Lamaze class, the instructor emphasized the importance of exercise, hinting strongly that husbands need to get out and start walking with their wives. From the back of the room one expectant father inquired, "Would it be okay if she carries a bag of golf clubs while she walks?" |
mhooker32@gmail.com: Feb 08 03:56PM -0800 doesnt boot up, nothing on screen. cmos battery was stone dead, replaced. doesnt even get a bios screen, nothing. this one has an azus AT31ont-1 board, 1 gig ram. it has a flash drive for operating system. with or without the drive in it, i get nothing. the power supply also doesnt turn on. you do get a little blue led on the motherboard, but no PS fan, no 5,12 volts. i now have it on the bench with an ATX power supply jumpered to always turn on,and a vga monitor. blue led is lit , 5, and 12 volts are present, and still get nothing. documentation seems to be non existant, i cant find anything. its from a video game, and im sure the bios was set to power up when the 110v switch is turned on. there must be a way to use an "on" switch like a pc, to get it into the bios screen, but i havent a clue what to jumper. any help most welcome thanks mike |
oldschool@tubes.com: Feb 08 03:47PM -0600 On Tue, 7 Feb 2017 21:29:16 -0000 (UTC), Jerry Peters >feature. Otherwise I could see lawsuits against the manufacterers or >the heating contractors when the battery fails and the pipes freeze >and cause extensive water damage. Maybe mine will turn on at 50deg. (or so). It does not say anything about that in the PDF manual I downloaded. It's a Honeywell made around 2009. I can easily pop it off the wall and program it. |
MOP CAP <email@domain.com>: Feb 08 02:54PM -0800 I am an old cranky fart. I don't like most of the excess on modern items. For a furnace I want a simple thermostat with millivolt system, no outside power required. That way when the power goes out I still can get heat. CP |
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