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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#121
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On Fri, 17 Aug 2007 15:58:50 GMT, "Arfa Daily"
wrote: Yeah,OK. I give in. You are right. I couldn't be more wrong if I tried. 35 years down the pan. Just as an experiment, I wiped goose grease all over my LCD monitor and guess what? YOU ARE RIGHT !!!! The problem with goose grease is the high number of geese it would take to treat all monitors. :-) ( that's for excited emphasis, I'm not shouting at you ). Ok, I never did think capitalizing as shouting worked very well anyway, since the person has to read the text either way for it to matter. My picture is now so blurred that it looks just like the real world when I don't have my specs on. Accuracy or what ?!!! Have you thought of marketing this idea ? You could put it in tubs and sell it on the net as "Kony's patent image enhancing compound (blended with REAL snake oil )" I'm not the one who wants to end up with less than the computer was designed to output. Yes the grease idea is crazy and has no merit but it is the type of degradation (albeit to a greater extent) causing your more lifelike image. CRT manufacturers didn't aim for that, it was just the result of the coating and thick glass. If LCD manufacturers wanted this, they could put a thick diffuser sheet on the front. My next plan is to see if I can drop a couple of bits on the input to the video card's DAC. That should increase the 'granularity' no end. This is another idea that could be put forward to monitor manufacturers to help them in their goal of making the reproduced image anything but lifelike, and better yet - *less* aesthetically pleasing !! Boy, you're a lad ! All these wickedly good ideas ! If you don't market them yourself, *I'm* gonna, and get really rich. Then you'll be sorry ! ;-) Ok! |
#122
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On 8/16/2007, James Sweet posted this:
I was a little startled - you answered my post, clipped my (admittedly silly) remark, and went on to actually answer the previous post. I've never made a mistake like that (you can be forgiven for not believing that!). I clipped the bottom, answered the part I was interested in, then simply forgot to clip the top as well. So what? So you answered the wrong post. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#123
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On 8/17/2007, Smitty Two posted this:
In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#124
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On 8/17/2007, Gene E. Bloch posted this:
On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#125
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"kony" wrote in message ... On Fri, 17 Aug 2007 15:58:50 GMT, "Arfa Daily" wrote: Yeah,OK. I give in. You are right. I couldn't be more wrong if I tried. 35 years down the pan. Just as an experiment, I wiped goose grease all over my LCD monitor and guess what? YOU ARE RIGHT !!!! The problem with goose grease is the high number of geese it would take to treat all monitors. :-) ( that's for excited emphasis, I'm not shouting at you ). Ok, I never did think capitalizing as shouting worked very well anyway, since the person has to read the text either way for it to matter. My picture is now so blurred that it looks just like the real world when I don't have my specs on. Accuracy or what ?!!! Have you thought of marketing this idea ? You could put it in tubs and sell it on the net as "Kony's patent image enhancing compound (blended with REAL snake oil )" I'm not the one who wants to end up with less than the computer was designed to output. Yes the grease idea is crazy and has no merit but it is the type of degradation (albeit to a greater extent) causing your more lifelike image. CRT manufacturers didn't aim for that, it was just the result of the coating and thick glass. If LCD manufacturers wanted this, they could put a thick diffuser sheet on the front. My next plan is to see if I can drop a couple of bits on the input to the video card's DAC. That should increase the 'granularity' no end. This is another idea that could be put forward to monitor manufacturers to help them in their goal of making the reproduced image anything but lifelike, and better yet - *less* aesthetically pleasing !! Boy, you're a lad ! All these wickedly good ideas ! If you don't market them yourself, *I'm* gonna, and get really rich. Then you'll be sorry ! ;-) Ok! Yeah, OK! Just messin' with ya! Really, I don't have a problem with my LCD monitors. Both of them look just fine. But subjectively, a CRT picture just has something that makes it a little more 'human' to my perception. I would guess that it's the same as CD versus vinyl, where the vinyl has a 'warmer' sound (oddly, Steve Wright was discussing exactly this on his BBC radio programme today, and it was his opinion that CD sounded 'cold' compared to vinyl). Another example might be programme material shot on video tape, versus that shot on film stock. Outdoor scenes in particular always have a flat, cold, unrealistic look to them, when shot on video, but I'm sure that you would probably be able to apply your 'more accurate not lifelike' analysis to these examples as well. Anyway, all of this is causing me to lose the will to live now, and I'm done with it. I think we better just settle on agreeing to differ ... Later Arfa |
#126
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa |
#127
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
Doc writes:
I don't like the way LCD/flat panel monitors look. The image isn't as sharp That's hard to believe. A problem common with CRTs is trying to achieve convergence of all three colors everywhere on the screen. Lack of convergence leads to loss of sharpness. Convergence is not an issue on flat panels. |
#128
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
wrote in message ... Doc writes: I don't like the way LCD/flat panel monitors look. The image isn't as sharp That's hard to believe. A problem common with CRTs is trying to achieve convergence of all three colors everywhere on the screen. Lack of convergence leads to loss of sharpness. Convergence is not an issue on flat panels. I don't really think that cvonvergence has been much of an issue since slotmasks became the norm many years ago, as these are inherently self converging. Whilst very cheap-end CRT monitors and TV sets might still have some slight convergence issues at the screen extremities, I can't honestly say that I have seen anything in this respect worth commenting on, for some years now. Perhaps I'm just lucky, or just selectively seeing what I want ( or don't ! ) want to ... d;~} Arfa |
#129
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
Arfa Daily writes:
Doc wrote: I don't like the way LCD/flat panel monitors look. The image isn't as sharp That's hard to believe. A problem common with CRTs is trying to achieve convergence of all three colors everywhere on the screen. Lack of convergence leads to loss of sharpness. Convergence is not an issue on flat panels. I don't really think that cvonvergence has been much of an issue since slotmasks became the norm many years ago, as these are inherently self converging. How so? Whilst very cheap-end CRT monitors and TV sets might still have some slight convergence issues at the screen extremities, I can't honestly say that I have seen anything in this respect worth commenting on, for some years now. I have. Perhaps I'm just lucky, or just selectively seeing what I want ( or don't ! ) want to ... d;~} There's also the issue of focus. I've seen CRTs go "soft" as they age. Focus is not an issue on flat panels. Then there's magnetic effects. Aside from degaussing, which modern CRTs are designed to do automatically, you have to worry about external fields, such as from nearby loudspeakers. I had a modern CRT image start to "shimmy" when an outdoor security light came on every evening. Flat panels are immune to external magnetic fields and don't need degaussing. |
#130
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
wrote in message ... Arfa Daily writes: Doc wrote: I don't like the way LCD/flat panel monitors look. The image isn't as sharp That's hard to believe. A problem common with CRTs is trying to achieve convergence of all three colors everywhere on the screen. Lack of convergence leads to loss of sharpness. Convergence is not an issue on flat panels. I don't really think that cvonvergence has been much of an issue since slotmasks became the norm many years ago, as these are inherently self converging. How so? *********** It is largely a function of the precision wound deflection yoke that is carefully matched to the CRT at the factory. This yoke requires only basic static convergence to be adjusted, and this is accomplished usually with a combination of 4 and 6 pole annular magnets at the rear of the yoke. See second para from bottom http://www.answers.com/topic/televis...cat=technology *********** Whilst very cheap-end CRT monitors and TV sets might still have some slight convergence issues at the screen extremities, I can't honestly say that I have seen anything in this respect worth commenting on, for some years now. I have. Perhaps I'm just lucky, or just selectively seeing what I want ( or don't ! ) want to ... d;~} There's also the issue of focus. I've seen CRTs go "soft" as they age. Focus is not an issue on flat panels. ************* It is fairly rare for CRTs to age this way these days. Often, something else in the circuitry fails, to render the monitor not worth repairing, before the CRT is showing serious signs of aging, although I do accept that this is a potential age-related failure mode of a CRT display. Whilst I agree that focus per se is not an issue that can be directly related to LCD display technology, many cheap end displays never-the-less do not look as sharp as a *good* CRT display, and also suffer from serious motion blur, both as a result of switching lag in the LCD cells, and display drive circuitry. There are other issues with LCD monitors, which some consider to be a bigger problem than the minor defects with CRT display technology. These include poor contrast ratio, poor eveness of the back illumination, fairly rapid wearing of the CCFLs providing that illumination, very poor results with a drive source resolution of anything other than the panel's native figure, and motion blur as already discussed. Focus of modern CRTs is well taken care of. Very well performing dynamic focus circuits have been in common usage for some years now, and the CRTs electron lenses are carefully designed to maximise the beneficial effects of this. Again, some cheap end monitors / TV sets are not terribly good in this respect, but that is more of a cost than technology issue. On a decent quality CRT display, you would be fairly hard pressed to find focus errors worth complaining about. ************* Then there's magnetic effects. Aside from degaussing, which modern CRTs are designed to do automatically, you have to worry about external fields, such as from nearby loudspeakers. I had a modern CRT image start to "shimmy" when an outdoor security light came on every evening. Flat panels are immune to external magnetic fields and don't need degaussing. ************* Magnetic effects should not be an issue with modern CRTs, unless a powerful field is brought close to the face of the CRT. The construction of the device includes a magnetic shield, and before they did, they were surrounded by a mu-metal shield, which blocked all but the strongest interfering fields. It is not the CRT which degauses itself automatically. Rather, it is a piece of circuitry which at switch on, applies an initially large, progressively decaying, AC current to the degausing coils surrounding the CRT. In the case of a TV set, that's it, but with a computer monitor, as well as this automatic degausing at switch on, a manual switch or menu option is often provided as well, to allow for a 'hot' demagnetisation. I've never really understood why manufacturers thought this necessary. Maybe because monitors are mounted on a tilt and swivel base, which could result in purity errors due to the realignment of the earth's magnetic field if you do spin the monitor round, but it would have gone back right anyway, when you turned it back. Still, it looks pretty, if you're bored with what you're doing ... As far as your monitor shimmering when the outside light came on, I would suggest that this was nothing to do with magnetic fields or CRT technology. Far more likely to be mains-borne mutual interference between the monitor's switch mode power supply, and something like triac switching in the outside light. Did you ever pin down what you thought was actually causing the problem ? Arfa |
#131
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
wrote in message ... Doc writes: I don't like the way LCD/flat panel monitors look. The image isn't as sharp That's hard to believe. A problem common with CRTs is trying to achieve convergence of all three colors everywhere on the screen. Lack of convergence leads to loss of sharpness. Convergence is not an issue on flat panels. Agreed. I believe that if money and maintenance are not issues, you can still get the best visual quality with CRTs. |
#132
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On 8/17/2007, Arfa Daily posted this:
"Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa :-) You could always put in metacommands, like below: SHOUT .... /SHOUT I noticed in configuring something on the Mac a couple of days ago (I forget what, sorry) that stars can bracket bold words and underscores can bracket italics in that app. I think this newsreader displays _word_ as an underscored word, but I won't know until I read it as an incoming article, as before. I knew about stars for emphasis, but I didn't know about displaying it as bold type until I started using MesNews a couple of years ago. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#133
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"Gene E. Bloch" wrote in message ... On 8/17/2007, Arfa Daily posted this: "Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa :-) You could always put in metacommands, like below: SHOUT ... /SHOUT I noticed in configuring something on the Mac a couple of days ago (I forget what, sorry) that stars can bracket bold words and underscores can bracket italics in that app. I think this newsreader displays _word_ as an underscored word, but I won't know until I read it as an incoming article, as before. I knew about stars for emphasis, but I didn't know about displaying it as bold type until I started using MesNews a couple of years ago. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Just goes to show how many years you can use something for, and still not know all about it. The underlining thing is yet another one to add to my knowledgebase. So I wonder if you can both bracket and slash either side to ensure that it will get read as italics in either variety of reader. And then again, can you add stars as well for bold and italics ? Arfa Arfa |
#134
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"Arfa Daily" wrote in message ... "Gene E. Bloch" wrote in message ... On 8/17/2007, Arfa Daily posted this: "Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa :-) You could always put in metacommands, like below: SHOUT ... /SHOUT I noticed in configuring something on the Mac a couple of days ago (I forget what, sorry) that stars can bracket bold words and underscores can bracket italics in that app. I think this newsreader displays _word_ as an underscored word, but I won't know until I read it as an incoming article, as before. I knew about stars for emphasis, but I didn't know about displaying it as bold type until I started using MesNews a couple of years ago. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Just goes to show how many years you can use something for, and still not know all about it. The underlining thing is yet another one to add to my knowledgebase. So I wonder if you can both bracket and slash either side to ensure that it will get read as italics in either variety of reader. And then again, can you add stars as well for bold and italics ? Arfa Senior moment. That should of course, have read "underscore and slash". I hate getting old ... Arfa |
#135
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On 8/21/2007, Arfa Daily posted this:
"Arfa Daily" wrote in message ... "Gene E. Bloch" wrote in message ... On 8/17/2007, Arfa Daily posted this: "Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa :-) You could always put in metacommands, like below: SHOUT ... /SHOUT I noticed in configuring something on the Mac a couple of days ago (I forget what, sorry) that stars can bracket bold words and underscores can bracket italics in that app. I think this newsreader displays _word_ as an underscored word, but I won't know until I read it as an incoming article, as before. I knew about stars for emphasis, but I didn't know about displaying it as bold type until I started using MesNews a couple of years ago. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Just goes to show how many years you can use something for, and still not know all about it. The underlining thing is yet another one to add to my knowledgebase. So I wonder if you can both bracket and slash either side to ensure that it will get read as italics in either variety of reader. And then again, can you add stars as well for bold and italics ? Arfa Senior moment. That should of course, have read "underscore and slash". I hate getting old ... Arfa Just to make you feel younger: */_test phrase_/* For some reason, I felt I had to do LIFO on the markers :-) -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") |
#136
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"Gene E. Bloch" wrote in message ... On 8/21/2007, Arfa Daily posted this: "Arfa Daily" wrote in message ... "Gene E. Bloch" wrote in message ... On 8/17/2007, Arfa Daily posted this: "Gene E. Bloch" wrote in message ... On 8/17/2007, Gene E. Bloch posted this: On 8/17/2007, Smitty Two posted this: In article , kony wrote: Capitalization is also used in text for emphasis, not just shouting. More commonly, on usenet, leading and trailing asterisks indicate what would be italicized for emphasis. Although my newsreader displays *word* in bold and /word/ in italics (if I let it). Hmmm - I've never tried both, like this: /*word*/ (looks like a comment to me!) */word/* I'll look at them when the message up shows in the NG... Both are in bold + italic here. Well, to be 100% accurate, the first is in italic + bold :-) BTW, the reason I had to wait until I could read it in the NG is that this reader (MesNews) displays bold, italic, and smileys as straight text in the composition window. So I guess that's why the common convention is to use slashes and asterisks. I never knew that some newsreaders actually interpreted these as such. Learn something new every day ! So that does leave capitalization free for 'shouting' ... d;~} Arfa :-) You could always put in metacommands, like below: SHOUT ... /SHOUT I noticed in configuring something on the Mac a couple of days ago (I forget what, sorry) that stars can bracket bold words and underscores can bracket italics in that app. I think this newsreader displays _word_ as an underscored word, but I won't know until I read it as an incoming article, as before. I knew about stars for emphasis, but I didn't know about displaying it as bold type until I started using MesNews a couple of years ago. -- Gene E. Bloch (Gino) letters617blochg3251 (replace the numbers by "at" and "dotcom") Just goes to show how many years you can use something for, and still not know all about it. The underlining thing is yet another one to add to my knowledgebase. So I wonder if you can both bracket and slash either side to ensure that it will get read as italics in either variety of reader. And then again, can you add stars as well for bold and italics ? Arfa Senior moment. That should of course, have read "underscore and slash". I hate getting old ... Arfa Just to make you feel younger: */_test phrase_/* For some reason, I felt I had to do LIFO on the markers :-) LOL ! Thanks. Feeling better now ... Arfa |
#137
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On Aug 13, 4:07 am, Arno Wagner wrote:
In comp.sys.ibm.pc.hardware.misc Doc wrote: enough to get me through short hit outages with both machines running. And with the el-cheapo battery in there, that figure will be down to 1 minute in no time. And you would be well advised to test the claim. Software can be made to lie to you, you know. If i may ask a related question: ups comes with small batteries so as to make it portable. Once I've put it in a permanent location, can I connect a bigger battery by using cables (say replacing the 12 Ah with 30 Ah battery?) or the charger will be exhausted bringing the bigger battery up to capacity? |
#138
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
On Wed, 22 Aug 2007 09:02:08 -0000, Dan wrote:
If i may ask a related question: ups comes with small batteries so as to make it portable. Once I've put it in a permanent location, can I connect a bigger battery by using cables (say replacing the 12 Ah with 30 Ah battery?) or the charger will be exhausted bringing the bigger battery up to capacity? The UPS can get too hot. |
#139
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
I don't really think that cvonvergence has been much of an
issue since slotmasks became the norm many years ago, as these are inherently self converging. LOL! I am holding a service manual for a Sony slot-mask Trinitron monitor featuring 3 pages of instructions on how to accomplish what you call "self-convergence". Whilst very cheap-end CRT monitors and TV sets might still have some slight convergence issues at the screen extremities, I can't honestly say that I have seen anything in this respect worth commenting on, for some years now. Perhaps I'm just lucky, or just selectively seeing what I want ( or don't ! ) want to ... d;~} That explains it. |
#140
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
I don't really think that convergence has been much of an
issue since slotmasks became the norm many years ago, as these are inherently self converging. LOL! I am holding a service manual for a Sony slot-mask Trinitron monitor featuring 3 pages of instructions on how to accomplish what you call "self-convergence". There is nothing inherently "self-converging" about slot-mask CRTs. The original "delta" gun pattern required a fairly elaborate convergence process. In the early '60s, GE introduced an "in-line" gun arrangement (the first of its kind, AFAIK) that had less lateral misconvergence than the delta design, and thus a simpler setup. Sometime in the '70s, I think (CMIIW), the precision in-line (PIL) system was introduced. The deflection yokes were deliberately miswound (using a plastic former with ribbing that precisely positioned the wires) to distort the deflection and thus produce correct convergence with minimal adjustments. I'm typing this missive at ViewSonic PerfectFlat A95f monitor that has perfect (and I mean perfect) purity and convergence right to the very corners. The tube is a Diamondtron, Mitsubishi's version of a Trinitron. |
#141
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
William Sommerwerck wrote:
I'm typing this missive at ViewSonic PerfectFlat A95f monitor that has perfect (and I mean perfect) purity and convergence right to the very corners. The tube is a Diamondtron, Mitsubishi's version of a Trinitron. If you keep the monitor for a few years, you'll need to readjust it in order to keep it that way. Life's like that. Entropy happens, and so you need to do preventative maintenance. People today forget about doing maintenance, and then they complain when stuff stops working right. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#142
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Observations on a UPS - follow up to a previous post
"Scott Dorsey" wrote in message
... William Sommerwerck wrote: I'm typing this missive at ViewSonic PerfectFlat A95f monitor that has perfect (and I mean perfect) purity and convergence right to the very corners. The tube is a Diamondtron, Mitsubishi's version of a Trinitron. If you keep the monitor for a few years, you'll need to readjust it in order to keep it that way. The monitor is almost 6 years old, and is holding up well. It has not deteriorated in any way I'm aware of. |
#143
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"William Sommerwerck" wrote ...
"Scott Dorsey" wrote ... William Sommerwerck wrote: I'm typing this missive at ViewSonic PerfectFlat A95f monitor that has perfect (and I mean perfect) purity and convergence right to the very corners. The tube is a Diamondtron, Mitsubishi's version of a Trinitron. If you keep the monitor for a few years, you'll need to readjust it in order to keep it that way. The monitor is almost 6 years old, and is holding up well. It has not deteriorated in any way I'm aware of. Of course it is possible that our eyesight is deteriorating at approx. the same rate and degree as the monitor. :-) |
#144
Posted to comp.sys.ibm.pc.hardware.misc,alt.comp.hardware,rec.audio.pro,rec.video.desktop,sci.electronics.repair
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Observations on a UPS - follow up to a previous post
"Richard Crowley" wrote in message ... "William Sommerwerck" wrote ... "Scott Dorsey" wrote ... William Sommerwerck wrote: I'm typing this missive at ViewSonic PerfectFlat A95f monitor that has perfect (and I mean perfect) purity and convergence right to the very corners. The tube is a Diamondtron, Mitsubishi's version of a Trinitron. If you keep the monitor for a few years, you'll need to readjust it in order to keep it that way. The monitor is almost 6 years old, and is holding up well. It has not deteriorated in any way I'm aware of. Of course it is possible that our eyesight is deteriorating at approx. the same rate and degree as the monitor. :-) Of course it is far more likely that the deterioration is accomodated by our perception over time and is not noticed. Every phosphor based display deteriorates from the day it it put into use. If the user compared that 6 year old monitor to a new one he would likely be surprised at the difference. The phosphors and the guns have deteriorated over that time, though convergence and geometry are little effected, intensity and to some degree focus certainly are. Leonard |
#145
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Observations on a UPS - follow up to a previous post
But these days, by the time six years is up, folks are buying
a new display anyway... This ViewSonic is the best I've ever owned, beating even the Sonys. I don't have the money for a new monitor at the moment. I'll purchase an LCD when I get a new computer in a year or two. |
#146
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Observations on a UPS - follow up to a previous post
On Aug 14, 7:54 pm, Gene E. Bloch wrote:
I don't like the way LCD/flat panel monitors look. The image isn't as sharp I'd have to disagree on this, if there is anything that is a clear win for LCD, it is image sharpness... it doesn't get any sharper than having individual pixel representation. This can be offset in perception if the particular LCD has poor contrast but it is still just as "sharp", though not as vibrant. I wonder if Doc is running his LCD at a non-native resolution... Don't have one, just going by what I've seen on display at various places. I have a 17" CRT monitor that I really like. |
#147
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Observations on a UPS - follow up to a previous post
Doc wrote:
Don't have one, just going by what I've seen on display at various places. I have a 17" CRT monitor that I really like. Don't go by what you see in the stores. The store demos of video monitors are as poorly set-up as the store demos of microphones and TV sets. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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