Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 8:17 PM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 15:08:45 Mark Wendt wrote: On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Our bullfrogs here in MD are bowled over pretty easily too. ;-) I am glad you said that. If I had, there would have been a contract out on me. ROFL! [...] I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Yeah, but you can't put it, a probe, and a usb cable to charge it with, along with the DSO-1, in your polo shirt pocket. ;-) True dat. But your DSO-1, usb cable and probe can't do waveform calculations, curve tracing, spectrum analyzing or have up to 1 GHz bandwidth... ;-) The 7000 series are lab scopes, that's for sure. But they sure are fun to work with, and for some things, pretty much essential. Besides, if you have enough of 'em, stick one permanently in the shop. Nobody sez ya gotta stop at just one! ;-) That being said, the 2000 series also make some pretty nice shop scopes, and are pretty portable, though not pocket protector-sized. Cheers, Gene Heskett Cheers, mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Saturday 02 May 2015 07:14:14 Mark Wendt wrote: On Fri, May 1, 2015 at 8:17 PM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 15:08:45 Mark Wendt wrote: On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Our bullfrogs here in MD are bowled over pretty easily too. ;-) I am glad you said that. If I had, there would have been a contract out on me. ROFL! [...] I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Yeah, but you can't put it, a probe, and a usb cable to charge it with, along with the DSO-1, in your polo shirt pocket. ;-) True dat. But your DSO-1, usb cable and probe can't do waveform calculations, curve tracing, spectrum analyzing or have up to 1 GHz bandwidth... ;-) Given the bw limit of about 4mhz, when I started out all those years ago, the scope I inherited for a bench scope was a Hickok 505. Even that trace could be mentally expanded to tell you a lot. Most folks see a rounded top on a waveform at the grid of the tune and take it at face value which to them is meaningless. But that rounded top needs to be compared to the DC bias, something that AC coupled Hickok couldn't do. But I learned early on that it was generally a sign of a tired tube, it was drawing grid current when it wasn't supposed to be. If you know what to expect, even that DSO-1 can tell you much more than the specs would lead you to believe. Thats 100% mental, and thats what I seem to be decent at. The 7000 series are lab scopes, that's for sure. But they sure are fun to work with, and for some things, pretty much essential. Besides, if you have enough of 'em, stick one permanently in the shop. Nobody sez ya gotta stop at just one! ;-) True, but that lab scope is not something you would want to slip a couple pieces of big spaghetti on so you could close a transmitter door on it, and standing on a plastic floor, proceed to use it to determine the screen grid current flowing in a 4CX5000A modulator stage by measuring the voltage drop across a 100 ohm 200 watt power resistor. The scope is going to be sitting at nominally 1500 volts above ground, One hand in pocket is the rule for stuff like this folks, do NOT try it at home. I once did that with a triple insulated 35 mhz dual trace phillips scope, worked right well, and told me the tube was toast as during the sync pulse, it was drawing nearly an amp of screen current, and the drop in screen voltage was what was causing pretty extreme, uncompensatable synch compression. The 4CX5000a is built as a shadow grid construction internally, and because the screens wire is physically wound to be precisely behind the control grid wires, exerting its fixed positive voltage as both an electron accelerant and because its well bypassed at the rf frequency, shields the control grid from the several thousand volts of rf swing on the plate making it quite easy to neutralize. And it all works quite well until something sneezes, causing one or more of those wires to overheat and sag. At that point, it is no longer precisely in the control grids shadow and starts intercepting the edge of the electron stream going by. That self destruction cycle continues until a tube, despite being able to handle the amperage in terms of plate current, is effectively burnt toast. That was a teaching/learning moment for me. A fresh tube, at full power will not draw more than 2.5 to 3 milliamps of screen current. And it can run several thousand hours, but if, in the 2x an hour logging of the meters, you note that this screen current is rising, order a fresh one when the meter says 5 milliamps, you have about a month left because the compression will become un compensatable by the time its showing 10 milliamps. The synch tip time is 4.7 microseconds, out of every 63.xx microseconds. All of that 10 milliamps average is drawn in that 7.4% of the synch pulse time. That being said, the 2000 series also make some pretty nice shop scopes, and are pretty portable, though not pocket protector-sized. That they were, once you had put a decent crt in them. But they are loaded with stuff thats now made out of the purest unobtainium made. They also have a 3rd pin grounded power cord, and because the line bypass filtering is so weak in breakdown voltage, such a stunt as I did with that triple insulated Phillips couldn't even be considered with the tek. You would probably, even if the 3rd pin was removed, have used the line cord as a fuse when the whole tx power supply, usually capable of fusing a 16 gauge wire, would be destroyed in a flash of light accompanied by the sound of clearing bullding entrance breakers if the transmitters own breakers aren't fast enough. One such incident on Fisher hill resulted in replacing a 4 ton
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 15:08:45 Mark Wendt wrote: On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: Our bullfrogs here in MD are bowled over pretty easily too. ;-) I am glad you said that. If I had, there would have been a contract out on me. [...] I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Yeah, but you can't put it, a probe, and a usb cable to charge it with, along with the DSO-1, in your polo shirt pocket. ;-) Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 06:15:02 Mark Wendt wrote: On Fri, May 1, 2015 at 6:07 AM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. Cheers, Gene Heskett Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? When that 2235 was about 7 years old, I found the input attenuator wasn't anywhere near the 1,2,5 sequence on 1 channel, off on both but wyyy off on one, as it had been left for days looking at a 285 volt dc level, with 150 volts of video on it, looking for an intermittent, which when it finaly showed itself, was a bad .5 uf paper capacitor that was opening up. Called tek after having verified the R's on that fawncy ceramic plate were sick (but not discolored in the least), found that it was past the federally mandated 5 years since it went out of production for parts availability, that yes they still had one left, no claims that it was good, and they wanted $1750 from me for the privilege of testing it when I installed it. I sent it to the transmitter forever, and spent that money and another thou on a Hitachi v1085, which 20 some years later still self tests itself at powerup and remains in calibration yet today. The pushbuttons aren't getting as much use today so they are a bit flaky, but then so are the buttons on my 30 yo V1065, whose computer isn't near as smart as the later version. And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:06 PM, andy pugh bodge...@gmail.com wrote: On 1 May 2015 at 17:00, Mark Wendt wendt.m...@gmail.com wrote: There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. I think I probably have one, but so far I like it a lot. Partly because it is small enough to transport by motorcycle. It's a 336 (picture of one here: http://www.komu.jp/DSCN0837B111.jpg ) with on-screen menus and storage and all sorts of other things that must have cost a fortune when new. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto Cute little scope. I was actually thinking of the 2400 series which has a chip called out on the schematics as U800. Heat degradation does most of those in. The guys on the Tekscopes mailing lists have taken to installing computer heat sinks on them to increase their longevity. About the only place you can get the chips is from other parts queens. Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 12:00:40 Mark Wendt wrote: On Fri, May 1, 2015 at 11:08 AM, Gene Heskett ghesk...@wdtv.com wrote: Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? [...] I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. Touche' And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. Power draw? All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. How does one discern that? And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. No need for deep pockets, as I mentioned above. They aren't Tek. They're guys like me that enjoy playing around with the vintage scopes, and have built labs for repair and calibration. As I mentioned before, I can repair and calibrate a scope close enough (without certs) for pretty much any use I, or just about anybody else on this list would have. We aren't running NIST labs, creating satellites, or stuff like that, though as I mentioned previously, there are guys out there that can cal your gear and back it up with NIST certs. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Nope, that recent Chinese digital is the best I can drag out to impress the frogs with. I have easily impressed frogs here in WV though. :) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. +10 at least, Mark. A 50mhz quad trace would do anything we need to do, if they made it. That was one of the reasons I bought that newer (then) Hitachi for the tv station, it takes a quad trace scope to setup a DVC-PRO deck after replacing a head drum/motor assembly. And you do that fairly frequently since head life is sub 2.5k hours run time in the average editing booth. Its also fragile as hell when being cleaned. Those, the first of the truly digital tape decks, caused a whole generation of wannabe techs to be needed to keep them running well. I couldn't hire them for any amount of money, we had by then collected the cream of the tech minded people available locally, so I wound up doing it all. Half the reason I retired at about 66.75 yo. Problem solved when they converted the next generation cameras to interchangeable hard drives as a recording medium. Sealed environment=20x more dependable. The head assembly at $2000+, vs a $200 hard drive box anyone could plug in. With longer recording time than the tape ever gave. Whats not to love? Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On 1 May 2015 at 17:00, Mark Wendt wendt.m...@gmail.com wrote: There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. I think I probably have one, but so far I like it a lot. Partly because it is small enough to transport by motorcycle. It's a 336 (picture of one here: http://www.komu.jp/DSCN0837B111.jpg ) with on-screen menus and storage and all sorts of other things that must have cost a fortune when new. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 11:08 AM, Gene Heskett ghesk...@wdtv.com wrote: Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. How deep are your pockets? When that 2235 was about 7 years old, I found the input attenuator wasn't anywhere near the 1,2,5 sequence on 1 channel, off on both but wyyy off on one, as it had been left for days looking at a 285 volt dc level, with 150 volts of video on it, looking for an intermittent, which when it finaly showed itself, was a bad .5 uf paper capacitor that was opening up. Called tek after having verified the R's on that fawncy ceramic plate were sick (but not discolored in the least), found that it was past the federally mandated 5 years since it went out of production for parts availability, that yes they still had one left, no claims that it was good, and they wanted $1750 from me for the privilege of testing it when I installed it. I sent it to the transmitter forever, and spent that money and another thou on a Hitachi v1085, which 20 some years later still self tests itself at powerup and remains in calibration yet today. The pushbuttons aren't getting as much use today so they are a bit flaky, but then so are the buttons on my 30 yo V1065, whose computer isn't near as smart as the later version. I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. And there are quite a few shops out there that will cal the scopes with certs if you require them too. Which is why I asked if you had really deep pockets. We have been frugal so I could do it, once. But I would never hear the end of it for paying 3 or 4 grand to calibrate a 99 dollar (+ ship, that thing must weigh 35 lbs) ebay scope. For under a $500 bill you can own a 2ghz digital sampler that masquerades as a 200Mhz, dual trace scope, with a full color display 2x the size of the teks, and 10x brighter. And weighs 2 lbs change. No need for deep pockets, as I mentioned above. They aren't Tek. They're guys like me that enjoy playing around with the vintage scopes, and have built labs for repair and calibration. As I mentioned before, I can repair and calibrate a scope close enough (without certs) for pretty much any use I, or just about anybody else on this list would have. We aren't running NIST labs, creating satellites, or stuff like that, though as I mentioned previously, there are guys out there that can cal your gear and back it up with NIST certs. The beginning of the end for tek was when they went public, then bought, or was bought, by the Grass Valley Group, both of which made top of the line test and production video gear IN THEIR DAY. Then they rested on their 1980 laurals. Today, they are both history, having been surpassed in the night by people whose names you may never have heard of, but who WILL give you the state of the art tools you need today, at a reasonable asking price. I gotta say it, Mark, that 2015 morning coffee smells pretty darned good from here. The 1985 version? Gah, its hopelessly burnt sitting on the back burner that long. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. Cheers, Gene Heskett Cheers, Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote: How deep are your pockets? [...] I'm talking about guys like me out there that collect vintage Tek stuff relatively inexpensively from Ebay, hamfests, Craigslist and other sources, and they are malfunctioning, repair them. And then run them through the performance checks and calibrate if necessary. My calibrations don't carry certs, but the scope will end up close enough for gummint work, or for that matter, just about any shop work you or I would do. Touche' VBSEG And then there are the amateur metrologists out there who have full-up cal labs in their shop, called the volt-nuts and time-nuts (I unashamedly admit to being on both those mailing lists... ;-) ) will cal your measuring equipment for you. I've got close to a dozen different Tek scopes from an SC502 TM50x mainframe plugin up to a 7854 four-bay mainframe which does waveform calculations and has digital storage. Power draw? Here's the 7854 in all it's glory: http://www.barrytech.com/tektronix/tek7000/tek7854.html Here's a list of all the 7000 series mainframes and the plugins: http://www.barrytech.com/tektronix/tek7000/tek7000scopes.html The four-bay mainframes are really nice, allowing two vertical and two timebases plugged in at one time. You can use a timebase in the vertical slot as an amp for x-y functions too. Don't have my 7854 manual handy, so I can't get the power numbers from it. I know I don't really need a heater in the lab when I get the mainframes fired up. ;-) All are quite repairable should anything break. There are a few Tek products with almost unobtanium proprietary chips in them, but I avoid those. None of the scopes I have have those parts. How does one discern that? The Tek Cross-reference manual, and from what the folks on the Tekscopes list have found. So, perhaps there's a spot in your shop that requires 20 GHz+ bandwidth digital scopes, VNA's, spectrum analyzers and such that cost well over $20k a piece? I gotta see your shop! ;-) Nope, that recent Chinese digital is the best I can drag out to impress the frogs with. I have easily impressed frogs here in WV though. :) Our bullfrogs here in MD are bowled over pretty easily too. ;-) Let's face it. A 500 MHz analog scope is way overkill for pretty much anything you, I or anyone else on this list will do in their shops. +10 at least, Mark. A 50mhz quad trace would do anything we need to do, if they made it. That was one of the reasons I bought that newer (then) Hitachi for the tv station, it takes a quad trace scope to setup a DVC-PRO deck after replacing a head drum/motor assembly. And you do that fairly frequently since head life is sub 2.5k hours run time in the average editing booth. Its also fragile as hell when being cleaned. Those, the first of the truly digital tape decks, caused a whole generation of wannabe techs to be needed to keep them running well. I couldn't hire them for any amount of money, we had by then collected the cream of the tech minded people available locally, so I wound up doing it all. Half the reason I retired at about 66.75 yo. Problem solved when they converted the next generation cameras to interchangeable hard drives as a recording medium. Sealed environment=20x more dependable. The head assembly at $2000+, vs a $200 hard drive box anyone could plug in. With longer recording time than the tape ever gave. Whats not to love? I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. Cheers, Gene Heskett Cheers, Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 02:26:32 Gregg Eshelman wrote: On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing Ahh, so, the MINUS 5 volt line. Sorta like the passenger pidgeon or dodo bird. Extinct. :) Does not exist even in this quad core phenom build, which is pretty ancient itself. Thanks Gregg. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 2:26 AM, Gregg Eshelman g_ala...@yahoo.com wrote: On 4/30/2015 10:52 PM, Gene Heskett wrote: There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... Here's the memo. :) http://www.tomshardware.com/forum/337378-28-white-wire-missing So, does he take the red pill or does he take the blue pill? ;-) Mark -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Fri, May 1, 2015 at 6:07 AM, Gene Heskett ghesk...@wdtv.com wrote: On Friday 01 May 2015 05:15:24 Mark Wendt wrote: On Fri, May 1, 2015 at 12:52 AM, Gene Heskett ghesk...@wdtv.com wrote: snippage Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. Get 'em one a these - Ebay #171772965816 ;-) Mark That one is out of calibtration by now, and uncalibratable because the input attenuator parts are out of stock. I will never touch a 20 yo Tek again after my experience trying to get them to warranty the tube that was clearly defective in a 22xx, 100mhz dual trace when it was new in 1984. I finally bought a crt and put it in myself. Long since replaced with a good Hitachi. 30 years later its still in pretty close calibration. Getting scope poor around here though, I bought a DS0-1 a couple years back, already have a Hitachi V1065, 100 mhz dual trace analog and just last fall bought a dual trace 100mhz digital. For 1 shot storage, its amazing. Cheers, Gene Heskett Never say never. I own a set of them there input attenuators, as well as almost all the gear required to calibration most Tek analog scopes, up to, and including the 7104 1 GHz mainframe. And there are quite a few shops out there that will cal the scopes with certs if you require them too. -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Computer crashing. Re: micro-v belts, smaller
On Friday 01 May 2015 00:07:29 Gregg Eshelman wrote: On 4/30/2015 5:51 PM, Gene Heskett wrote: I think I am going to have to find another PSU for it, there is no other rhyme or reason for it to go away in the middle of a job, like it has done 3x today. I padded up to the shop tapped the reset button just now so I'll be good for maybe an hour. But I also just commented that line out of fstab on this machine until such time as I get that one fixed. Check all over the motherboard for capacitors with bulged tops and/or signs of leaking. Also open up the power supply and look for same. All the electrolytic can capacitors should be completely flat on top. The slightest bulge indicates its bad and will be doing out of specification nastiness to voltage levels and data signals. Theres an echo in here Gregg. Capacitor ESR is the single most important characteristic in modern digital junk. You may have forgotten that I am A C.E.T., so those are the first things I look for. I just haven't pulled it off the shelf to look yet, thats short stepladder work. Tomorrow if its not raining. I've seen several power supplies that would do a voltage drop or increase after being on for a while. A drop can get you lockups, random reboots and even (oh such fun) data corruption. Too much and CPUs and hard drives can get fried. Yeah, there are times when I would kill for a 60 yo VTVM, its needle response is instant. Now we have to drag out a scope to look at such stuff. It is even better at finding that stuff, but most look at a scope go whazzat thing?, and have no clue even when you tell them what its doing. I think the majority of us here can use one though. I've had a scope probe in one hand since 1950ish. There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. I think the drive logic, in both drives, (rotating magnetic, and rotating optical) needs 5 volts in these boxes, so I would expect it to be present and accounted for. Unless I missed the memo... --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Computer crashing. Re: micro-v belts, smaller
On 4/30/2015 5:51 PM, Gene Heskett wrote: I think I am going to have to find another PSU for it, there is no other rhyme or reason for it to go away in the middle of a job, like it has done 3x today. I padded up to the shop tapped the reset button just now so I'll be good for maybe an hour. But I also just commented that line out of fstab on this machine until such time as I get that one fixed. Check all over the motherboard for capacitors with bulged tops and/or signs of leaking. Also open up the power supply and look for same. All the electrolytic can capacitors should be completely flat on top. The slightest bulge indicates its bad and will be doing out of specification nastiness to voltage levels and data signals. I've seen several power supplies that would do a voltage drop or increase after being on for a while. A drop can get you lockups, random reboots and even (oh such fun) data corruption. Too much and CPUs and hard drives can get fried. There's a 5 volt line not used on newer ATX power supplies so if you have a tester and it says that line is bad, look to see if the wire is not in the connector. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
