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In article ,
mentioned... Putting the bulbs in series seems to qualify as an improvement. Perhaps that would not hold up in court, but we all know the law is an ass. No, the law _is_ the law. How the idiot lawyers and judges interpret it is another matter. Not a subject for discussion here, tho. On Wed, 03 Sep 2003 03:37:43 GMT, Jeffrey D Angus wrote: wrote: [ snip ] Now with the above facts in mind, which do you think is safer? That's the same logic that dictates about how much money the school board can save by NOT installing fire sprinklers in a school building. Jeff -- @@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@ h@e@r@e@@ ###Got a Question about ELECTRONICS? Check HERE First:### http://users.pandora.be/educypedia/e...s/databank.htm My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 at hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half). http://www.everybookstore.com You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it: http://physics.nist.gov/cuu/Units/binary.html @@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@ u@e@n@t@@ |
In article ,
mentioned... Putting the bulbs in series seems to qualify as an improvement. Perhaps that would not hold up in court, but we all know the law is an ass. No, the law _is_ the law. How the idiot lawyers and judges interpret it is another matter. Not a subject for discussion here, tho. On Wed, 03 Sep 2003 03:37:43 GMT, Jeffrey D Angus wrote: wrote: [ snip ] Now with the above facts in mind, which do you think is safer? That's the same logic that dictates about how much money the school board can save by NOT installing fire sprinklers in a school building. Jeff -- @@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@ h@e@r@e@@ ###Got a Question about ELECTRONICS? Check HERE First:### http://users.pandora.be/educypedia/e...s/databank.htm My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 at hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half). http://www.everybookstore.com You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it: http://physics.nist.gov/cuu/Units/binary.html @@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@ u@e@n@t@@ |
On Wed, 3 Sep 2003 03:31:59 -0700, the renowned Watson A.Name - "Watt
Sun" wrote: In article , mentioned... On Wed, 03 Sep 2003 02:28:32 GMT, the renowned (Sven Franklyn Weil) wrote: You then screw this entire thing into the socket. It's called a "bulb saver" and is essentially a tiny diode in series that chops the voltage across the bulb in half. snip The RMS voltage across the bulb is reduced by ~29%. Ooh, DejaVu, I think we've had this discussion before... It's like the UL about pulsing LEDs to get more brightness, it just keeps coming around. The bulb savers that I used back in the '70s were varistors. They slowed down the turn-on of the light. They were low resistance when warm, and high when cold. There was no diode. I've seen the diodes, not the varistors. But I have no doubt you're right. Probably very similar to the inrush limiters used on PC power supplies, minus the leads. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
On Wed, 3 Sep 2003 03:31:59 -0700, the renowned Watson A.Name - "Watt
Sun" wrote: In article , mentioned... On Wed, 03 Sep 2003 02:28:32 GMT, the renowned (Sven Franklyn Weil) wrote: You then screw this entire thing into the socket. It's called a "bulb saver" and is essentially a tiny diode in series that chops the voltage across the bulb in half. snip The RMS voltage across the bulb is reduced by ~29%. Ooh, DejaVu, I think we've had this discussion before... It's like the UL about pulsing LEDs to get more brightness, it just keeps coming around. The bulb savers that I used back in the '70s were varistors. They slowed down the turn-on of the light. They were low resistance when warm, and high when cold. There was no diode. I've seen the diodes, not the varistors. But I have no doubt you're right. Probably very similar to the inrush limiters used on PC power supplies, minus the leads. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
On 3/9/03 20:27, in article ,
"Watt Sun Watson A.Name -" wrote: I gotta tell you what happened at work last week. The head of security came over and told us that someone had complained that one of our tables was blocking the door (it's a temporary setup). The head of registration told him that she put it there to keep the students from leaving. The security guy says, but that's an emergency exit, see that sign up there? So she says, oh, ok. Well, then, can we move the sign? Sounds like when I was going to Drexel - for 12 years! -- Robert Morein. Failed 50 year old loser student. Failed Temple University Ejected from Grad program after seven years Ejected from Drexel University after dissertation judged "bull**** nonsense" Sued Drexel and Lost Even took it to the Supreme Court, but they laughed at me! But I get even with studentsandthelaw.org my harassment site. My poor jew mother Jane Morein died with a broken heart, watching this poor twisted loser fail at everything I've ever done. Daddy Sylvan Morein, who studied hard and became a fair to middlin' dentist, is now stuck at home with his loser son; unwanted by life or any of the relatives. But I've discovered at last my calling: INTERNET WACKO! Man, am I a Loser! |
On 3/9/03 20:27, in article ,
"Watt Sun Watson A.Name -" wrote: I gotta tell you what happened at work last week. The head of security came over and told us that someone had complained that one of our tables was blocking the door (it's a temporary setup). The head of registration told him that she put it there to keep the students from leaving. The security guy says, but that's an emergency exit, see that sign up there? So she says, oh, ok. Well, then, can we move the sign? Sounds like when I was going to Drexel - for 12 years! -- Robert Morein. Failed 50 year old loser student. Failed Temple University Ejected from Grad program after seven years Ejected from Drexel University after dissertation judged "bull**** nonsense" Sued Drexel and Lost Even took it to the Supreme Court, but they laughed at me! But I get even with studentsandthelaw.org my harassment site. My poor jew mother Jane Morein died with a broken heart, watching this poor twisted loser fail at everything I've ever done. Daddy Sylvan Morein, who studied hard and became a fair to middlin' dentist, is now stuck at home with his loser son; unwanted by life or any of the relatives. But I've discovered at last my calling: INTERNET WACKO! Man, am I a Loser! |
Watson A.Name - Watt Sun wrote:
Hey, I agree with you. But instead, I would have used higher voltage lamps, two in parallel. Decent LEDs were hard to get back in the '70s. Another solution might be to use neon lamps. You mean flourescent lights. neon lamps need a high voltage transformer. :-( you will not want them for emergency lights, as they are often the cause of the emergency themselves. BTW also fluorescent lights have many shortcomings, in a cold environment(Alaska?) they extinguish and won't start at even moderately cold temperatures. They need some electronics inside the socket and finally last not longer than special longlife bulbs, that is 6000h, which is not even 1 year. Of course the efficiency is much higher even if you add the loss of the electronics (which is usually not accounted for). Here in my building we have flourescent lights in the emergency lights, but they are always off and only light up at power loss. They have a 12Ah 12V gel-battery inside and will power the 5W lamp for not even 24h, not enough if we have a blackout like in NY. But fortunaterly that has never happened so far. ciao Ban Bordighera,Italy |
Watson A.Name - Watt Sun wrote:
Hey, I agree with you. But instead, I would have used higher voltage lamps, two in parallel. Decent LEDs were hard to get back in the '70s. Another solution might be to use neon lamps. You mean flourescent lights. neon lamps need a high voltage transformer. :-( you will not want them for emergency lights, as they are often the cause of the emergency themselves. BTW also fluorescent lights have many shortcomings, in a cold environment(Alaska?) they extinguish and won't start at even moderately cold temperatures. They need some electronics inside the socket and finally last not longer than special longlife bulbs, that is 6000h, which is not even 1 year. Of course the efficiency is much higher even if you add the loss of the electronics (which is usually not accounted for). Here in my building we have flourescent lights in the emergency lights, but they are always off and only light up at power loss. They have a 12Ah 12V gel-battery inside and will power the 5W lamp for not even 24h, not enough if we have a blackout like in NY. But fortunaterly that has never happened so far. ciao Ban Bordighera,Italy |
Watson A.Name - Watt Sun wrote: In article , mentioned... nobody wrote: In wrote: But in 1978 I wired the 2 bulbs in the each of the EXIT lights in the church in series. Congratulations, you probably bypassed a safety feature. If they're in parallel, if one burns out the other keeps going. In series, if one goes they're both out, and the exit sign is no longer visible. But if he'd have left them in parallel, they most certainly would have both burned out long ago! :-p Cheers, Fred I gotta tell you what happened at work last week. The head of security came over and told us that someone had complained that one of our tables was blocking the door (it's a temporary setup). The head of registration told him that she put it there to keep the students from leaving. The security guy says, but that's an emergency exit, see that sign up there? So she says, oh, ok. Well, then, can we move the sign? :-))) LOL! But hey, makes sense to me. "If Mohammed won't go the the mountain, the mountain will bloody well just have to come to Mohammed!" Cheers, Fred -- +--------------------------------------------+ | Music: http://www3.telus.net/dogstarmusic/ | | Projects: http://dogstar.dantimax.dk | +--------------------------------------------+ |
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