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Huge <Huge@nowhere.much.invalid>: Jan 04 11:14AM >>> Nothing profound has ever been said on one line.   >>Including that statement?   > Of course. Everything I write has a hidden meaning,   That being "I am a pompous twat". Not very well hidden, though.   -- Today is Prickle-Prickle, the 4th day of Chaos in the YOLD 3181 "The four most overrated things in life are champagne, lobster, anal sex and picnics." Christopher Hitchens.

Huge <Huge@nowhere.much.invalid>: Jan 04 11:17AM On 2015-01-03, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:   [88 lines snipped]   > I have a bunch of Luxo desk lamps that have a 100 W incandescent > surrounded by a 22W circular fluorescent.   Why cannot you apparently not then find your Delete key?   -- Today is Prickle-Prickle, the 4th day of Chaos in the YOLD 3181 "The four most overrated things in life are champagne, lobster, anal sex and picnics." Christopher Hitchens.

"john james" <jj9801@nospam.com>: Jan 04 09:09AM +1100 "Tim Watts" <tw_usenet@dionic.net> wrote in message news:gg2mnb-nmt.ln1@squidward.dionic.net...   >> Old style 0.2" 20mA LEDs weren't that bothered, but I'm not au fait with >> high power Crees and the like.   > Anyone?   www.google.com/search?q=cree+teardown

The Natural Philosopher <tnp@invalid.invalid>: Jan 03 10:17PM On 03/01/15 18:23, Adrian wrote: >> reformat it by wrapping the lines.   > Please spell carats correctly and cease the apostrophe abuse so that we > don't have to wrap your lines...   Please spell *carets* correctly ....   -- Everything you read in newspapers is absolutely true, except for the rare story of which you happen to have first-hand knowledge. – Erwin Knoll

polygonum <rmoudndgers@vrod.co.uk>: Jan 03 10:28PM On 03/01/2015 21:49, Bob Eager wrote:   > But I'm not sure what the right term is - I call them 'diamond brackets'.   > Sorry about omitting them - as I often do, I remembered it after I > pressed the button!   They ain't carrats, carrets, carrots, carats nor even carets!   ^ ASCII caret (circumflex accent)   They are:   > <   Angle brackets or Less-than sign and Greater-than sign   -- Rod

Phil Allison <pallison49@gmail.com>: Jan 03 03:15PM -0800 Jeff Liebermann wrote:     > However, the rest are tightwads or just plain cheap. They look at the > store shelf and see $1 CCFL lamps next to $10 LED lights.     ** Why "CCFL" lamps.     > That totally depends on how you rate lifetime. I get about 2 years on > most of my commodity CCFL lights.   ** Why "CCFL" lamps.     > However, these are not the best CCFL lights. Why would this company > advertise that their CCFL lamps have 2.5 to 6.6 times the lifetime of > ordinary CCFL lamps?   ** Because they ARE CCFL type lamps.   CCFL = " cold cathode fluorescent."   Same technology used for backlighting LDC screens, but made in bulb style.   Google tells me they exist, but I have never seen one.   Look like spiral CFLs but the glass tube is much finer and there are a lot more turns.     .... Phil

Tim Watts <tw_usenet@dionic.net>: Jan 03 11:22PM On 03/01/15 22:09, john james wrote:   > www.google.com/search?q=cree+teardown   Thank you - that was very informative.   Wonder if those are available here   <goes off to check>

Jeff Liebermann <jeffl@cruzio.com>: Jan 03 04:56PM -0800 On Sat, 03 Jan 2015 20:02:10 +0000, Tim Streater   >Or, of course, being inconsistent within a post. It's late, one is >tired, and so on. Much easier to make a short post than make a longer >one be coherent.   Are you sure? "I have made this letter longer than usual, because I lack the time to make it short" (Blaise Pascal)   I know how to make things worse. I often post to Usenet when I'm working in my palatial office. A single long reply might be assembled in perhaps 5 sections, spread over several hours. I frequently have a better idea as I go along, and forget to edit the previous great idea into something that is consistent with the latest great idea. When I later review the posting, my reaction is usually "Did I write that"? Sometime long and coherent are mutually exclusive.   I tend to write that way I expect others to write. As I previously mentioned, I really don't care for one-line opinions and pontifications. I want to read logic, reasoning, references, examples, links to related articles, and personal experiences. That's rather difficult to deliver in a short posting and impossible in a one-liner.   Also, I'm quite serious about the fear of screwing up. It really bugs me. With all the rants and conspiracy theories that I write, mistakes are inevitable. When possible, I admit and correct my mistakes. More often, I just turn off the computer, and go sulk for a few days. Sometimes, there's nothing I can write that would be worth reading, so I just disappear. Eventually, I recover and return until repeated after my next inevitable mistake. I could greatly improve my batting average by simply replying with a one-liner, where my ability to screw things up is severely restricted.   -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

"Rod Speed" <rod.speed.aaa@gmail.com>: Jan 04 12:41PM +1100 Jeff Liebermann <jeffl@cruzio.com> wrote >> It's late, one is tired, and so on. Much easier to make >> a short post than make a longer one be coherent. > Are you sure?   Yep.   > "I have made this letter longer than usual, because > I lack the time to make it short" (Blaise Pascal)   Another one liner from someone who is quite literate. > into something that is consistent with the latest great idea. When > I later review the posting, my reaction is usually "Did I write that"? > Sometime long and coherent are mutually exclusive.   Sure, but clearly we do see the other effect he mentioned too. > I tend to write that way I expect others to write. As I previously > mentioned, I really don't care for one-line opinions   They can be useful at times, particularly when you are saying you agree with someone else's longer post.   > and pontifications.   Even pontifications have their place, particularly if you are the Pope.   > I want to read logic, reasoning, references, examples, > links to related articles, and personal experiences.   Sure, but that isnt always feasible, particularly with links to related articles in some situations.   Sometimes its useful to just post a list of possibilitys with a problem and suggest how to test if that one is what is happening etc.   > That's rather difficult to deliver in a short > posting and impossible in a one-liner.   Yes, but one liners do have their place. Have a look at some of Churchill's sometime. > Also, I'm quite serious about the fear > of screwing up. It really bugs me.   Sure, but it isnt something that drives everyone in the fear sense.   > With all the rants and conspiracy theories > that I write, mistakes are inevitable.   Yes, and you have done that with one liners.   > When possible, I admit and correct my mistakes.   You haven't done that with this one.   > after my next inevitable mistake. I could greatly improve my > batting average by simply replying with a one-liner, where > my ability to screw things up is severely restricted.   Sure, but as you say, they aren't always useful, particularly with problem solving.

"Michael A. Terrell" <mike.terrell@earthlink.net>: Jan 03 10:44PM -0500 Jeff Liebermann wrote: > Most LED lights include a remote monitoring feature.   > I'm not sure what might be causing the failures that you've observed. > Any sign of overheating? Power glitches? Bullet holes?     This is Central Florida, so it is hot, and the electricity is crap, since it went from Florida Power, to Progress Energy, then to Duke Energy. They are specified and maintained by FDOT, or one of their contractors. I've seen a few spots where they went back to the incandescent lamp and colored lens.       > Got an IR temperature gun? Get as close as you can and get a > temperature reading. My guess(tm) is that it's running hot, even with > some blown lights.     No, all I have is the small fob type of contactless IR thermometer.     -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.

mike <ham789@netzero.net>: Jan 03 08:42PM -0800 On 1/3/2015 12:04 PM, Rod Speed wrote:   >> <http://www.ccfllamps.com/_en/02_technology/01_detail.php?fid=3> >> Is it because their lamps are better, or because the ordinary CCFL >> lamps have been cost reduced to produce a shorter lifetime? It's called business. Go to any grocery store. Do you really believe this toothpaste gets your teeth twice as clean as that one? Or that your clothes will stay fresh 2X longer with this detergent? Any claim that can't be disproved in court is a good claim.   In their zeal to get to market, it's not unusual to find that the cure for one reliability problem introduced another. oops!   How long do you save the receipts and packaging? Lifetime warranty is useless if you can't figger out where to place the claim or it costs more to ship than to buy new.   With anything new, you want to reel in all the early adopters who'll pay high prices. Product has to last until the prices come down below shipping costs or you've changed the name on the company nameplate.

Phil Allison <pallison49@gmail.com>: Jan 03 09:22PM -0800 mike wrote:   Rod Speed wrote: > >> <http://www.ccfllamps.com/_en/02_technology/01_detail.php?fid=3> > >> Is it because their lamps are better, or because the ordinary CCFL > >> lamps have been cost reduced to produce a shorter lifetime?   ** Rod did not write the above.   > It's called business.     *** FFS can't you see either that "CCFL" and "CFL" are NOT the same ?     > Go to any grocery store.   ** Go to Google first.   Geez ....       .... Phil

PeterC <giraffenos.pam@homecall.co.uk>: Jan 04 08:18AM On Sat, 03 Jan 2015 10:54:18 -0800, Jeff Liebermann wrote:   > Is it because their lamps are better, or because the ordinary CCFL > lamps have been cost reduced to produce a shorter lifetime? Dunno, > but I suspect the latter.   Interesting about the CCFLs - for a start I thought it was a typo for CFL, but then realised that CCFLs are used in displays and last for years (mine is nearly 8 years old but has been on for probably no more than 20,000h in that period). The article does seem to have a bit of trouble with its units, e.g. kW/h.   -- Peter. The gods will stay away whilst religions hold sway

Andy Burns <usenet.feb2014@adslpipe.co.uk>: Jan 04 09:16AM William Sommerwerck wrote:   >> in the EE Times article.   > One //might not// argue that. The LED lamp is made of discrete components that > are manufactured separately, and individually soldered in place.   The original article makes the very crude leap from one filament with a claimed 0.0001% probability of failure (shouldn't that approach 100% after a thousand hours?), to 60 electronic components yet assumes they each have the same 0.0001% probability of failure, multiplying them up to give a 60x higher failure rate for the LED vs the incandescent.   Subject to my eyesight, in the circuit chosen there appear to be 1 integrated circuit, 8 diodes, 8 transistors, 11 capacitors, 26 resistors, 2 chokes, 1 fuse.   Each of these classes of component have different probabilities of failure, and in "cheap" PSU circuits it tends to be the capacitors with the highest, for a given circuit a bit of analysis will probably reveal three or four "pinch" components that are likely to be responsible for >90% of all the failures.   Searching for other LED lamp schematics, was that one chosen because it was considered a well designed circuit, or because it has a conveniently high component count?

Andy Burns <usenet.feb2014@adslpipe.co.uk>: Jan 04 09:18AM Andy Burns wrote:   > The original article makes the very crude leap from one filament with a > claimed 0.0001% probability of failure   Grrrr! 0.01% in both cases

John-Del <ohger1s@aol.com>: Jan 03 06:46PM -0800 On Saturday, January 3, 2015 3:12:56 PM UTC-5, BV BV wrote: Hateful vile spew..   And yet if your mother is raped by an Islamist barbarian, she will be stoned to death for infidelity. Yeah, glad my mother or the mother of my children doesn't belong to your hateful cult.   Fuck off

Phil Allison <pallison49@gmail.com>: Jan 03 04:10PM -0800 dave wrote:   > It's the lack of pliabililty. They call it a pinch roller because it > pinches the tape. A hard rubber puck is useless. The exact dimension > isn't critical as long as the bearings fit and the plunger goes far enough.     ** You must be thinking of pinch rollers used in VCRs which often have an internal ball race.   The vast majority RR and echo machine rollers simply have a plain bearing running on a shaft of about 4 or 5mm dia.   All the Roland 1/4 inch tape echos have a roller that is 12mm x 28mm running on a 6mm shaft.     .... Phil

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