Changing a lightbulb

[zapta]

That's why MTBF matters  ;-)

[mcinque]

 

[German_EE]

Try this one:

[dr.diesel]

Pretty cool.  Wonder how that video was taken, drone perhaps?

[pickle9000]

Very good camera work.

[Maxlor]

You know where this leads.

How many EEVBlog forum members does it take to change a light bulb? Many!

• 6 to argue about which terminal current passes through
• 2 to point out that the light bulb behaves in a non-ohmic fashion under some circumstances, so everyone using simplified ohmic equations is ignorant and stupid
• 3 to ask about upgrading the light bulb to a 100MHz one
• 1 to ask about the best place to buy one
• 5 to rant at the above guy about setting his country of residence in the forum profile
• 4 claiming that the light bulb's input protection is insufficient and that it's therefore dangerous to use with 2kV
• 4 responding that the light bulb is perfectly fine for bench use
• ...

Please add more

[Zero999]

I wonder what sort of lamp it is?

Perhaps they should upgrade to LEDs to increase the life of the lamp.

[Retep]

Pretty cool.  Wonder how that video was taken, drone perhaps?

Superman

[Richard Crowley]

Retrofit LED replacements are rather popular for this application.  For the obvious reasons.

From the size of those turnstile wings, it looks like a rather low VHF TV channel.
That is about the size of the wings on our local (obsolete) channel 2 (50-56 MHz) antenna.
In the US, they have moved everybody out of the low-band VHF range, and pretty much everybody out of the high-band VHF range, also.

They have to feed the opposite pairs of "wings" with 90 degree phased signal to create the omnidirectional radiation pattern.
So they need a phasing circuit down at the bottom, and TWO feedlines up the tower to the antenna.

Looks like it is out in the US midwest plains somewhere, so they need those lightning rods extending above the warning light.

[PA0PBZ]

Please add more

4 to argue that a microprocessor should be used
2 newbies asking how to change the bulb because they don't want to read the long thread
1 suggesting it should not be turned on but do a teardown (...)
4 complaining about the frame rate being too high/too low

[free_electron]

There's the MTBF of the lightbulb and there's the MTBF of the guy that has to change it ...  there's only one letter difference between FAIL and FALL ( actually one stump ...)

[free_electron]

You know where this leads.

How many EEVBlog forum members does it take to change a light bulb? Many!

• 6 to argue about which terminal current passes through
• 2 to point out that the light bulb behaves in a non-ohmic fashion under some circumstances, so everyone using simplified ohmic equations is ignorant and stupid
• 3 to ask about upgrading the light bulb to a 100MHz one
• 1 to ask about the best place to buy one
• 5 to rant at the above guy about setting his country of residence in the forum profile
• 4 claiming that the light bulb's input protection is insufficient and that it's therefore dangerous to use with 2kV
• 4 responding that the light bulb is perfectly fine for bench use
• ...

Please add more

• 5 arguing it was designed with the wrong CAD package
• 9 asking why they can't find light bulb symbols in their CAD package.
• 417212 asking how to caculate the series resistor for the  .. no wait ... scrap this one.
• 2 anal rententives pointing out caculate has a spelling error in it. ( It doesn't. It's a typing error. I perfectly know well how to spell calclulate
• 1 guy claiming any kind of glass balloon with bits of metal scrap in it should be widlarized into extinction and replaced by something more modern.
• 666 guys asking for open source lightbulb designs
• 555 huys asking if the blinking circuit was made with .. well you know ...
• oodles stating the bulb would not have crashed if it ran linux as an operating system
• same guy that wanted to widlarize them asking why on earth a lightbulb needs an operating system in the first place
• 17 guys wondering what would hit the ground first : the guy , or the iphone he accidentally dropped while snapping a selfie up there
• one guy wondering what you do if halfway up you realise you need to pee... or the other thing ...
• 3 people wondering if they turn off the transmitter
• 5 people wondering if the antenna loops he attaches the safety clips to  really would hold him if he slipped
• one guy wondering why he holds on to the excess looped coax cables at one point
• one guy wondering why the light bulb is still under power and blinking... it clearly works so why does it need swapping ?
• i hope he didn't forget a snack. you could get the munchies while you're up there... not a good idea to run out of fuel
• 56 people debating whether lightbulbs should be thru-hole or SMD
• out of those 56 at least 14 firing up the war between 0805 and 0603 lightbulbs.
• one hung lo posting a spam topic to promote his business selling cheap lightbulbs

[zapta]

Hopefully he didn't forget the screwdriver in the van.

[GreyWoolfe]

Please add more

4 to ask about hacking to unlock hidden features like blinking random patterns
6 to complain that the pricing of the bulb is higher in their country than anywhere else
The same 6 to also complain about the long ship times to get it cheaper from somewhere else
everyone to argue over the lumens per watt rating, PRI, color temp, etc
The 4 then arguing which microprocessor to use, extolling the benefits of their favorites

[jancumps]

...
417212 asking how to caculate the series resistor for the  .. no wait ... scrap this one.
2 anal rententives pointing out caculate has a spelling error in it....
...

BIG smile 

[free_electron]

- one guy posting he collects burned out lightbulbs and where to get this one to add to his collection
- dave doing a teardown of the tower and associated equipment  with an in depth analysis of the defunct tv transmitter. oh wait . no that has been done already ..

[AlfBaz]

I use to have to fix/change things on really high (nothing like the vid) towers/poles/masts years and years ago when elf and safety was no ones concern but your own. No fear whatsoever!

A few weeks ago strong winds caused our outside tv aerial to need re-positioning. Got the extension ladder out, climbed onto the roof (5-6 meters) and I was shitting bricks!

Age, it seems, smacks the bravado out of you

[SeanB]

Yup, was younger and dumber as well. Climbing hangers to do safety signage, helped ever so helpfully by my boss GI Joe ( looks just like the cartoon figure.....) using a crane. I brought along a safety harness, he wanted to just use a cargo sling.

[Skimask]

Please add more

2 more arguing about what time to start the job in case it interferes with prayer time.

[calexanian]

How can we forget the forum member who complains about government intervention and safety regulations when he has to change his light bulb?

Also the guy who recommends they install a pulley system to bring the light fixture down to ground level when it is time to change it.

[EvilGeniusSkis]

so far we are at 1402 people to change the light bulb. still only about 10% of the number of people required to make changes in a bureaucracy.

[n45048]

The idea of "free climbing" (without using a safety tether) gives me the heebie jeebies.

[devanno]

I use to have to fix/change things on really high (nothing like the vid) towers/poles/masts years and years ago when elf and safety was no ones concern but your own. No fear whatsoever!

A few weeks ago strong winds caused our outside tv aerial to need re-positioning. Got the extension ladder out, climbed onto the roof (5-6 meters) and I was shitting bricks!

Age, it seems, smacks the bravado out of you

Don't feel bad... just watching the video made my knees weak!   

[zapta]

7. Thread or bayonet?
8. Is the bulb driven by current or voltage?
9. Is the bulb real or a Chineese fake?

[free_electron]

7. Thread or bayonet?
8. Is the bulb driven by current or voltage?
9. Is the bulb real or a Chineese fake?

are the emitted photons particles or a wave ?  (now the cat's out of the bag ... this will all end up in tears , i just know it )