[time-nuts] Conducting Bench Top Material

[Didier Juges]

Also they are very sensitive to heat, so do not use them in an enclosed
fixture. 

I have been burned (figuratively) with these two gotchas, there may be more.
The one that lasts the longest in my house is the outside light at my back
door. It is turned on once a day around 6-7 PM and off in the morning, so
about 12 hours a day every day, and it lasts for years at that rate. Those
in the bathroom that get to be turned on and off several times a day for a
relatively short time don't do nearly as well.

Didier

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Ed Palmer
> Sent: Friday, January 29, 2010 8:29 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Conducting Bench Top Material
> 
> The most important thing to remember about CFLs is *don't* 
> use them anywhere that they will be turned on and off a lot 
> (e.g. bathrooms).  
> Use them where they'll be turned on and left on.  Short on / 
> off cycles can reduce their lifetime to 15% of normal.  
> Here's a report on the
> subject: 
> 
> http://www.lrc.rpi.edu/nlpip/publicationDetails.asp?id=114&type=1
> 
> Ed
> 
> d.seiter at comcast.net wrote:
> > And now "they" are trying to do away with edison bulbs. I 
> hope the LED equivalents are better, because the CF bulbs 
> seem to last less in most home apps. (I have "standard" bulbs 
> that have outlasted multiple CF bulbs in similar 
> applications) In particular, I have a 75W desk lamp bulb 
> which has been in use since '97 and gets more hours than the 
> ceiling CFs in the same room, which have been replaced at 
> least 3 times... 
> >
> > They are not enclosed or abused. I was really PO'd at the 
> short life of my first set of CF lamps. They seem to be doing 
> better now, but still there is no great enhanced life span. 
> >
> > Dave
> > ----- Original Message -----
> > From: "Bill Hawkins" <bill at iaxs.net>
> > To: "Discussion of precise time and frequency measurement" 
> > <time-nuts at febo.com>
> > Sent: Thursday, January 28, 2010 2:28:31 AM GMT -07:00 US/Canada 
> > Mountain
> > Subject: Re: [time-nuts] Conducting Bench Top Material
> >
> > Warning: Way OT
> >
> > When the vacuum tube was born, there were half as many 
> people on this 
> > planet, and global climate change wasn't a problem. Very few people 
> > will talk about populution. It's as if there was a blind 
> spot in the 
> > brain. Maybe there's no intelligent life in the Universe 
> because all 
> > life evolves with similar selection pressures.
> > Once technology removes natural predators (or stops world wars with 
> > the atomic bomb), population heads for the sky until the 
> big die-off.
> >
> > If other people don't have a problem with having four kids, 
> I have no 
> > problem with using vacuum tubes and Edison bulbs.
> >
> > All in my humble opinion, of course. 
> >
> > Bill Hawkins
> >
> > -----Original Message-----
> > From: Rex
> > Sent: Wednesday, January 27, 2010 11:50 PM
> >
> > Steve Rooke wrote: 
> >   
> >> Wasn't life so much easier with valves (tubes)... 
> >>     
> > Nostalgia? 
> >
> > Valves (tubes) warmer in close proximity, yes. Global 
> warming should 
> > make that, on average, less helpful.
> > ........ 
> > glowing bulbs
> > Other than that memory, and certain trade-offs at big Rf 
> power, I'll 
> > say I no longer encourage the glowing bulbs for most things.
> >
> >
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> >   
> 
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