| Zero Cool |
How many group members does it take to change a light bulb?
1 to change the light bulb and to post that the light bulb has been changed
14 to share similar experiences of changing light bulbs and how the light
bulb could have been changed differently
7 to caution about the dangers of changing light bulbs
27 to point out spelling/grammar errors in posts about changing light bulbs
53 to flame the spell checkers
41 to correct spelling/grammar flames
6 to argue over whether it's "lightbulb" or "light bulb" ...
another 6 to condemn those 6 as anal-retentive
2 industry professionals to inform the group that the proper term is "lamp"
15 know-it-alls who claim *they* were in the industry, and that "light
bulb" is perfectly correct
156 to email the participant's ISPs complaining that they are in violation
of their "acceptable use policy"
109 to post that this group is not about light bulbs and to please take
this discussion to a lightbulb group
203 to demand that cross posting to hardware forum, off-topic forum, and
lightbulb groups about changing light bulbs be stopped
111 to defend the posting to this group saying that we all use light bulbs
and therefore the posts *are* relevant to this group
306 to debate which method of changing light bulbs is superior, where to
buy the best light bulbs, what brand of light bulbs work best for this
technique, and what brands are faulty
27 to post URL's where one can see examples of different light bulbs
14 to post that the URL's were posted incorrectly and then post the
corrected URL's
3 to post about links they found from the URL's that are relevant to this
group which makes light bulbs relevant to this group
33 to link all posts to date, quote them in their entirety including all
headers and signatures, and add "Me too"
12 to post to the group that they will no longer post because they cannot
handle the light bulb controversy
19 to quote the "Me too's" to say "Me three"
4 to suggest that posters request the light bulb FAQ
44 to ask what is a "FAQ"
4 to say "didn't we go through this already a short time ago?"
143 to say "do a Google search on light bulbs before posting questions
about light bulbs"
1 forum lurker to respond to the original post 6 months from now and start
it all over again....
P.S. this was meant to be funny, Humours, laughter as we have all done it!
Zero :D |
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| Variac |
| Hmmm. Seems pretty accurate... |
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| Bill Fitzpatrick |
| You forgot at least one (me) to complain that the .jpg file size of the lightbulb in question is 680K and it takes forever to download. |
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| Geek |
| /me sends it to Bill in an 18MB .tiff format :D |
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| Carondimonio |
| ... and at least 38 members sharing their experiences about how changing the light bulb in their bathroom has improved their system' s sound...:D |
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| till |
| you forgot the mod, who will move the thread into some nirvana, because he has no commercial interest in light bulbs. |
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| runebivrin |
And at least one member claiming that the noticed effect of changing the light bulb can be explained by psychooptics, and that it's likely there are no measurable differences in light at all.
Rune |
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| chris ma |
4 post to question and share experience regarding neon light, battery power light, the kind of stand/stood should be used when changing toilet rolls:D
The Butcher |
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| Cal Weldon |
At least one to suggest that the connecting wire should be upgraded along with the bulb.
Cal |
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| joensd |
5 to tell you that you should read the datasheet of the bulb first before exchanging it
80 to ask for a group buy of light bulbs and 2 organizing this
5 claiming that their modification of a 40W-bulb is much brighter than any ordinary 200W-bulb
1 to tell you that you need at least a 1000W-bulb to see the light muhahahaha |
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| till |
A puritan fundametalist moderator how deletes the thread without comment, because he found out lightbulbs may be uses for frivolous purposes.
(like happened shortly ago, once more. Must be some kind of Taliban - moderator) |
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| Da5id4Vz |
| quote: | | How many group members does it take to screw in a light bulb? |
Well just two, but how do you get them in there? |
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| Geek |
| There will be bound to be a few who insist lightbulbs be changed in matched pairs ;) |
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| gmphadte |
| Few will say this matched pair has to be connected to matching sources with matching cables, what silver.... nooooo GOLD |
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| moamps |
- one will amplify importance (EMI etc..) of exact filaments aligning in double or quad application
- two will discuss resulting coherence lenght |
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| zinsula |
| quote: | Originally posted by Da5id4Vz
quote:
| quote: | | How many group members does it take to screw in a light bulb? |
Well just two, but how do you get them in there? |
WRONG!!!!!!!
It takes 2001 :
One is holding the light bulb
2000 are turning your house around.....
Ciao, Tino |
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| quasi |
If you upgraded to an oxygen free bulb with a capacitor bypassed inductive filament you could change to a "brighter light stage"??? with a tighter warmer light field ???
groan....... |
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| Mosez |
| ... and then there's 1 demanding to know why the lightbulb should be replace in the first place |
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| ingrast |
| The new bulb I find crisper in the yellows, tight in the reds but harsh in the blues. Very detailed overall though. |
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| Cobra2 |
-my solder-iron don't reach....
Arne K :clown: |
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| Variac |
One mod to screw it in, four members complaining that he has a commercial interest in lightbults so won't let anyone else do it.
:D |
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| Da5id4Vz |
Has anyone tried using a rectifier to reduce the filament noise in a light bulb?
I've had a few people tell me they've done it, with good results. |
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| cocolino |
| quote: | Has anyone tried using a rectifier to reduce the filament noise in a light bulb?
I've had a few people tell me they've done it, with good results.
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Actually You`d increase noise due to the switching action of the rectifier diodes.:down:
All You really need is a correctly designed hum-pot!:nod: |
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| Jocko Homo |
Putting a rectifier in series with a bulb operating on AC is a good way to shorten its lifetime.
Bulbs intended for use with DC usually have filament structures designed to work that way.
Usually...........
Jocko |
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| Luke |
| oooh I got one. If you freeze it for a couple of years it will glow brighter than any bulb twice its power rating:D |
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| m.parigi |
| quote: | Originally posted by Jocko Homo
Putting a rectifier in series with a bulb operating on AC is a good way to shorten its lifetime.
Bulbs intended for use with DC usually have filament structures designed to work that way.
Usually...........
Jocko |
...Therefore, you need to make sure that the bulb gets the cleanest possible AC, free of any DC offset and of RF interference or noise.
3 members will propose a solid state AC oscillator/rebuilder (PSAudio style).
44 members will then thrash the solid state approach, maintaining that it gives a cold and harsh hue to the light emitted. Replacing the FET's with half a dozen 1938 vintage GE tubes would cure it.
1 member will maintain that, given the use of the above tubes, the AC cleaning circuit for the best light is the one suggested by some obscure Japanese professor in a handwritten note miraculously found after the recent earthquake.
27 members will claim that having adopted the above circuit, they are now able to see things in a much clearer way and with an unprecedented detail. Half of them will also report having been cured of asthma and rheumatism.
52 members will dispute the miraculous claims about the purified-AC-based-exchanged-lightbulb and will demand the findings to be checked in a series of double-blind tests :D ...quite appropriate, since we're talking about a light bulb!!! |
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| Carondimonio |
| quote: | Originally posted by m.parigi
52 members will dispute the miraculous claims about the purified-AC-based-exchanged-lightbulb and will demand the findings to be checked in a series of double-blind tests :D ...quite appropriate, since we're talking about a light bulb!!! |
...and another 45 members will argue that a "deaf test" would be more appropriate, to eliminate influences from external acoustic vibrations which, as it is well known, can deteriorate light quality...:D |
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| ingrast |
Oh what an incredible oversight!!
To be of any value, the bulb *MUST* be placed in a double screened room so external light light sources are blocked.
Room size and bulb placement are also critical for a correct performance.
I think a software package should be released to simulate different combinations of aspect ratio and walls / ceiling materials to compare effects also. |
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| matjans |
Also, we shouldn't forget the few unbelievers that insist that 'a lamp is a lamp is a lamp' and that all lamp or psu mods are futile.
This, obviously, will give others reason to start a flamewar which (naturally) will be moderated strictly. The flamers will complain 'en plein public' about the commercial interests of the moderators who will, in turn, explain that they have no commercial interest whatsoever, despite working at a light bulb (lamp) factory or -better still- have a webshop where they sell high end light bulbs/lamps or lamp parts.
;) |
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| ingrast |
| Since this thread was started with the purpose of determining *how many diyers are needed to replace al light bulb*, It is my opinion posts about *light bulb use* do not belong here, a new thread in this respect could then be started if desired. |
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| Da5id4Vz |
One member must slowly and pedantically explain the tungsten halogen regenerative cycle to the rest of the forum.
Indignant responses will follow from all those who already know about the THRC, explaining why it doesn’t apply to this bulbs failure.
Why hasnt anyone mentioned lightbulbs w/ CCW threads? (for those of us hwo use threaded base lightbulbs) |
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| BobM |
And of course there's always the lurking handful that would say in order to accurately judge whether ther is a REAL difference or just a PERCEIVED difference that a double blind test should be performed. :bfold:
Then the follow-up group spelling out the excrutiating details of how that blind test should be run. :clown:
Then the one spoil sport who will understand that a double BLIND test is ineffective when judging a light source.:bawling:
Enjoy,
Bob |
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| Da5id4Vz |
| quote: | | Then the one spoil sport who will understand that a double BLIND test is ineffective when judging a light source. |
Lets just hope that the findings don’t show that there was no perceivable difference in the light bulb between using lamp cord and speaker cable. |
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| Zero Cool |
| quote: | Originally posted by Da5id4Vz
Lets just hope that the findings don’t show that there was no perceivable difference in the light bulb between using lamp cord and speaker cable. |
OHHHHH i want to be the first to market and sell a "Monster" light bulb!!!
Zero |
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| SY |
| Hmpf. The true lover of light will only accept gas lamps. |
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| janneman |
| quote: | Originally posted by SY
Hmpf. The true lover of light will only accept gas lamps. |
Push-pull or SE?
Jan Didden |
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| amisdad |
Noob question.
I'm about to install my first lightbulb, but I have a few questions first.
Is there a kit available? My budget is $200.00 US and what is the best solution for my money? I can't read a schematic yet, so I would appreciate a detailed layout if possible. Thanks for all your help! |
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| Swedish Chef |
4 members to point out that the use of sockets for light bulbs has a detrimental effect to HF response and thus light quality.
2 members doing sim's about the parasitic effects of sockets concluding that they don't effect the light quality at all.
1 member and light bulb guru shouting out that the experiments he did with sockets back in the early 70's proved that sockets were very bad for light quality. "Everytime someone says they are using sockets with good effect it just makes me laugh".
32 members discussing various brands of sockets and their impressions regarding light quality. Some sockets just seem to be too bright.
1 member offering kits with premium grade sockets and cabling. The sockets are CNC machined out of 4'' rod 7075-T6 aluminium coupled to a massive copper plate. The optic signature of copper along with its damping properties makes it ideal for light bulb sockets.
14 members discussing quantum-mechanic theories of why different sockets will have an impact on light quality.
The Chef pointing out that sockets are standard in the pro light industry and have a negligible effect on system light performance while he would be a lot better of doing his homeworks and passing his exams. |
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| Da5id4Vz |
A calcium carbide w/ water generator for acetylene will provide a much purer light source than LPG.
Open flames with reflectors, although not as efficient, offer a light with less distortion than a mantel fueled with propane.
Many also consider a cloth covered un-vulcanized rubber hose the best delivery mechanism. |
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| SY |
| quote: | Originally posted by Da5id4Vz
A calcium carbide w/ water generator for acetylene will provide a much purer light source than LPG.
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But it's kinda harsh and uninvolving. |
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| Da5id4Vz |
| quote: | | But it's kinda harsh and uninvolving. |
Perhaps, but I feel this is overcome by titrating for the proper volumetric yield, eliminating the need for regulation.
(Titration is a funnier word when written than spoken) |
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| dnsey |
Applying ultra-expensive violin varnish (developed over 150 years)to any bulb will completely transform the visible output, making it almost indistinguishable from sunlight, due to the effect of the sun on the trees from which the varnish is derived. Thus, the bulb 'knows' the quality of light expected from it, and responds accordingly.
However, some experimenters claim good results with ordinary yacht varnish with a little blue dye added. |
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| dnsey |
Has anyone tried 1c 'closeout' bulbs?
Apparently, when fitted in a properly designed DIY luminaire they will out-perform the most expensive TV studio components. |
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| Cal Weldon |
| What's a light bulb? |
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| ingrast |
| quote: | Originally posted by Cal Weldon
What's a light bulb? |
A fruit heavy trees do not give. |
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| till |
| did i miss the professional SMD diamond super light bulb group buy? |
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| Cobra2 |
| quote: | Originally posted by Zero Cool
OHHHHH i want to be the first to market and sell a "Monster" light bulb!!!
Zero |
Good idea...I'm in, if we can win the law-suit...
Arne K |
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| Swedish Chef |
| Still lobbying for a white LED light bulb forum. |
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| Swedish Chef |
That PSU for the LED:s is just plain horrible. A plastic case and not even gold plated connectors!
I prefer the lightstage, microdetail & richness from a valve PSU. :cool: |
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| bzdang |
Just wondering - I'd have thought that a separate parcan section would be of more use than a separate barebulb forum. Single bulb systems being closer to 'normal' lamps than parcans.
Cheers,
bzdang |
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| Da5id4Vz |
No serious audiophile would use spun aluminum! |
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| Pjotr |
Help, what is a light bulb? Enlighten me please … :rolleyes:
Cheers ;) |
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| bzdang |
Not spun, God Forbid !
Cnc machined, from finest aerospace aluminum billet. |
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| Hans L |
:joker:
Zero Cool,
now that was funny. You almost had me PMP :D |
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| purplepeople |
If you're going to use a light bulb, the only clean power for a light bulb is a 12V lead acid battery. Optima is the best brand here. Stay away from Canadian Tire or any other house brand.
However, the smoothest visible light can only be had using the analog generation of a candle. Any candle will do, even the little birthday candles. Check out various religious supply centers for the extra long run-time varieties. It's always a pain for your light to run out just as you're getting to your favourite passages.
For the LED crowd, I believe, that National Semiconductor makes an series of high-power IC drivers starting with the LM2794. These have been popularized by the famous LumenCard with entire threads on the forum devoted to various LumenClone designs.
As for upgrades, other than the power supply mods, the only ones extant are those involving the power switches and dimmer modules. So far the most successful of these seem to be swapping the standard household switches for solid state relays with or w/o IR remote control. Dimmers tend to be either passive rheostats and PWM controllers, both with questionable results, especially clarity of vision at the lower intensities.
Just my 2 cents worth...
:)ensen. |
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| pamaz |
Once again here there is the eternal debate whether it's better solid state light, or bulb light!
Ciao
Paolo |
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| ingrast |
There is no match for the hard to come by carbon filament vintage bulbs, more so if driven by a good brand battery and preferably an oil impregnated paper stiffening capacitor in parallel.
Tungsten bulbs tend to leave a metallic aftertaste.
Gas discharge tubes barely do and then only for nonprofessional aplications. But then driven with high clock rates. 50/60 Hz lead to objectionable quantizing flicker. Same goes for solid state. |
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| gmphadte |
What is a gas discharge tube?
Please, please explain
If the tube keeps discharging the gas what happens when the charges are finished and how do u refill them back?
Gajanan |
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| Coulomb |
| quote: | Originally posted by gmphadte
What is a gas discharge tube?
Please, please explain
If the tube keeps discharging the gas what happens when the charges are finished and how do u refill them back?
Gajanan |
Well a Gas Discharge tube is what connects your lower stomach to the outside world, I find eating Chili refills mine nicely thank you.
:)
Anthony |
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| gmphadte |
Originally quoted by Gasho | quote: | Simple things in life , bring the greatest pleasure
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| bluebeard |
| Will this light be used primarily for home theater, observing your daughters violin practice, or perhaps as a strobe during an all-night rave? Are you a pastel kind of guy or leaning more to earth tones? Such a fabulous variety of bulbs, wiring, and power sources out there - we'd really need to know your optical preferences to recommend anything further. |
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