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Dead Compact Fluorescent Examination

D

D from BC

Jan 1, 1970
0
My compact fluorescent died... :(
I was just about to toss it in the garbage when....
Crack it open came to mind... Yeah!! Arrrrfff..Arrrrffff. :)
Only took 1 minute with screwdriver prying.

There's lots of soot inside.
The soot source is from one part.
It was box shaped approx. 8mmx8mmx4mm (LxHxW)
Capacitor?

What was that part?
Or forget that...what's a better compact fluorescent to buy?
It was a Philips Marathon made in Mexico. 350mA, 25W.
I think the tube won the marathon... :p

FYI on other parts
2 33uF electrolytics
2 1N50A marked semiconductors
1 resistor
2 "orange drop" like capacitors
1 E core inductor (looks gapped)

Also..
When this bulb was new and working...
I heard a "crack" sound from the wall switch.
That can't be good...It sounds like a high start up current that's
damaging the switch contacts.

Is this just a crappy compact fluorescent?
D from BC
 
M

martin griffith

Jan 1, 1970
0
My compact fluorescent died... :(
I was just about to toss it in the garbage when....
Crack it open came to mind... Yeah!! Arrrrfff..Arrrrffff. :)
Only took 1 minute with screwdriver prying.

There's lots of soot inside.
The soot source is from one part.
It was box shaped approx. 8mmx8mmx4mm (LxHxW)
Capacitor?

What was that part?
Or forget that...what's a better compact fluorescent to buy?
It was a Philips Marathon made in Mexico. 350mA, 25W.
I think the tube won the marathon... :p

FYI on other parts
2 33uF electrolytics
2 1N50A marked semiconductors
1 resistor
2 "orange drop" like capacitors
1 E core inductor (looks gapped)

Also..
When this bulb was new and working...
I heard a "crack" sound from the wall switch.
That can't be good...It sounds like a high start up current that's
damaging the switch contacts.

Is this just a crappy compact fluorescent?
D from BC
check out wotshisname... sam repair faq ?, might have some info, all
is aasscciii schematics as well


martin
 
D

David L. Jones

Jan 1, 1970
0
My compact fluorescent died... :(
I was just about to toss it in the garbage when....
Crack it open came to mind... Yeah!! Arrrrfff..Arrrrffff. :)
Only took 1 minute with screwdriver prying.

There's lots of soot inside.
The soot source is from one part.
It was box shaped approx. 8mmx8mmx4mm (LxHxW)
Capacitor?

What was that part?
Or forget that...what's a better compact fluorescent to buy?
It was a Philips Marathon made in Mexico. 350mA, 25W.
I think the tube won the marathon... :p

FYI on other parts
2 33uF electrolytics
2 1N50A marked semiconductors
1 resistor
2 "orange drop" like capacitors
1 E core inductor (looks gapped)

Also..
When this bulb was new and working...
I heard a "crack" sound from the wall switch.
That can't be good...It sounds like a high start up current that's
damaging the switch contacts.

Is this just a crappy compact fluorescent?
D from BC

This might have some info for you:
http://sound.westhost.com/articles/incandescent.htm

Dave.
 
D

D from BC

Jan 1, 1970
0

Cool thanks..I clipped this off that link:

"Inrush Current: As noted above (and below), most CFL electronic
ballasts have a rather high initial inrush current, which can easily
exceed 5A and often a lot more. This current is limited in some
electronics by one component - the main filter capacitor. "

D from BC
 
My compact fluorescent died... :(
I was just about to toss it in the garbage when....
Crack it open came to mind... Yeah!! Arrrrfff..Arrrrffff. :)
Only took 1 minute with screwdriver prying.

There's lots of soot inside.
The soot source is from one part.
It was box shaped approx. 8mmx8mmx4mm (LxHxW)
Capacitor?

What was that part?
Or forget that...what's a better compact fluorescent to buy?
It was a Philips Marathon made in Mexico. 350mA, 25W.
I think the tube won the marathon... :p

FYI on other parts
2 33uF electrolytics
2 1N50A marked semiconductors
1 resistor
2 "orange drop" like capacitors
1 E core inductor (looks gapped)

Also..
When this bulb was new and working...
I heard a "crack" sound from the wall switch.
That can't be good...It sounds like a high start up current that's
damaging the switch contacts.

Is this just a crappy compact fluorescent?
D from BC

Those CF lamps are highly overrated. They last a long time if you
leave them on, but switching on/off leads to a premature death. I
really can't wait until LEDs replace them.
 
P

Phil Allison

Jan 1, 1970
0
"D from BC"

http://sound.westhost.com/articles/incandescent.htm


Cool thanks..I clipped this off that link:

"Inrush Current: As noted above (and below), most CFL electronic
ballasts have a rather high initial inrush current, which can easily
exceed 5A and often a lot more. This current is limited in some
electronics by one component - the main filter capacitor. "


** What was significant about this to you ??

BTW, that page has lots of my pics and test results.




......... Phil
 
D

D from BC

Jan 1, 1970
0
"D from BC"




** What was significant about this to you ??

BTW, that page has lots of my pics and test results.




........ Phil

I believe the high surge current explains why I can hear arcing from
the wall switch when I turn on the screwbase Philips Marathon CFL. I
have to wonder how hurtful that is to the wall switch..
It's just unnerving to hear (fingernails on a black board effect) and
it makes me wonder about stresses in the CFL circuit and question it's
reliability.
I mentioned the switch arcing noise in case it might be linked to the
CFL failure..Noise>high current>component Isurge heat damage.

It looks like a small (nonelectrolytic) box cap burned in the Philips
CFL.. There's lots of soot..
I'm just pissed that the electronics apparently failed before the
tube.
Anyways..it's in the trash. Some archaeologists 10 000 years from now
can dig it up and figure it out.
Thought I'd post about it in case somebody knew tales of crappy CFL's.
D from BC
 
D

D from BC

Jan 1, 1970
0
Those CF lamps are highly overrated. They last a long time if you
leave them on, but switching on/off leads to a premature death. I
really can't wait until LEDs replace them.

Ahhhh....
I don't recall seeing that warning on the package. Bastards!!! :(
"Warning: Turning off the Philips Marathon CFL can result in premature
failure.." :p

The CFL was my kitchen light.. It got turned on and off daily.
I've replaced it with a screwbase 60W halogen.
That should last a long time..

D from BC
 
P

Phil Allison

Jan 1, 1970
0
"D from BC"
"Phil Allison"
I believe the high surge current explains why I can hear arcing from
the wall switch when I turn on the screwbase Philips Marathon CFL. I
have to wonder how hurtful that is to the wall switch..


** One CFL is not gonna harm it.

A dozen would though.


It's just unnerving to hear (fingernails on a black board effect) and
it makes me wonder about stresses in the CFL circuit and question it's
reliability.


** I have measured CFL inrush peaks of +/- 20 amps on 240 volt power.

I mentioned the switch arcing noise in case it might be linked to the
CFL failure..Noise>high current>component Isurge heat damage.


** The peak is brief - a few milliseconds duration.

It looks like a small (nonelectrolytic) box cap burned in the Philips
CFL.. There's lots of soot..


** Polyester caps can release an amazing amount of smoke.

I'm just pissed that the electronics apparently failed before the
tube.


** Very common.

The parts are all stressed over their makers ratings and operated at high
temps.

The Chinese makers only care it lasts a couple of thousand hours - as no one
times the life span and very few come back to the shops that sell them.

Anyways..it's in the trash. Some archaeologists 10 000 years from now
can dig it up and figure it out.
Thought I'd post about it in case somebody knew tales of crappy CFL's.
D from BC


** Check out these links:

http://www.execulink.com/~impact/fluorescent_lights.htm

http://www.execulink.com/~impact/commercial_electric_cfl_EDXO23.htm

http://www.cpsc.gov/cpscpub/prerel/prhtml05/05064.html

http://www.execulink.com/~impact/GlobeElectric23WattCFLs.htm




......... Phil
 
D

D from BC

Jan 1, 1970
0
"D from BC"
"Phil Allison"


** One CFL is not gonna harm it.

A dozen would though.





** I have measured CFL inrush peaks of +/- 20 amps on 240 volt power.




** The peak is brief - a few milliseconds duration.




** Polyester caps can release an amazing amount of smoke.




** Very common.

The parts are all stressed over their makers ratings and operated at high
temps.

The Chinese makers only care it lasts a couple of thousand hours - as no one
times the life span and very few come back to the shops that sell them.




** Check out these links:

http://www.execulink.com/~impact/fluorescent_lights.htm

http://www.execulink.com/~impact/commercial_electric_cfl_EDXO23.htm

http://www.cpsc.gov/cpscpub/prerel/prhtml05/05064.html

http://www.execulink.com/~impact/GlobeElectric23WattCFLs.htm




........ Phil

Thanks for the links.. Interesting reading..
D from BC
 
J

Jan Panteltje

Jan 1, 1970
0
My compact fluorescent died... :(
I was just about to toss it in the garbage when....
Crack it open came to mind... Yeah!! Arrrrfff..Arrrrffff. :)
Only took 1 minute with screwdriver prying.

There's lots of soot inside.
The soot source is from one part.
It was box shaped approx. 8mmx8mmx4mm (LxHxW)
Capacitor?

What was that part?
Or forget that...what's a better compact fluorescent to buy?
It was a Philips Marathon made in Mexico. 350mA, 25W.
I think the tube won the marathon... :p

FYI on other parts
2 33uF electrolytics
2 1N50A marked semiconductors
1 resistor
2 "orange drop" like capacitors
1 E core inductor (looks gapped)

Also..
When this bulb was new and working...
I heard a "crack" sound from the wall switch.

These bulbs do not like intermittent mains.
Check your mains wriring for bad connections.
 
E

Eeyore

Jan 1, 1970
0
Those CF lamps are highly overrated. They last a long time if you
leave them on, but switching on/off leads to a premature death.

Utter nonsense. Normal switching on and off doesn't bother them at all.

Graham
 
E

Eeyore

Jan 1, 1970
0
D said:
The CFL was my kitchen light.. It got turned on and off daily.

Which wouldn't bother it at all.

I've replaced it with a screwbase 60W halogen.
That should last a long time..

Really ? Some halogens I tried had very short lifetimes.

Graham
 
P

Phil Allison

Jan 1, 1970
0
"Eeysore Fuckwit TROLL "
You only had one ?



You realised you're not supposed to toss it in the garbage ?


** Err - right

- so onboard some NOS, Soviet Cold War era space vehicle

headed for the sun is the fuckwit GREENIE way - OK ??




....... Phil
 
E

Eeyore

Jan 1, 1970
0
D said:
I believe the high surge current explains why I can hear arcing from
the wall switch when I turn on the screwbase Philips Marathon CFL.

Do tell how a closed switch 'arcs' will you ?

Graham
 
E

Eeyore

Jan 1, 1970
0
D said:
Thought I'd post about it in case somebody knew tales of crappy CFL's.

I've used CFLs for well over 10 years. Most have been Philips and some are
Osram. I've found them to be quite excellent.

Graham
 
E

Eeyore

Jan 1, 1970
0
Phil said:
"D from BC"


** Very common.

The parts are all stressed over their makers ratings

Data please ?

and operated at high temps.

Not that high.

The Chinese makers only care it lasts a couple of thousand hours - as no one
times the life span and very few come back to the shops that sell them.

His Philips bulb wasn't made in China.

Graham
 
P

Phil Allison

Jan 1, 1970
0
"Eeysore = Fuckwit Pommy Cunthead "

Data please ?


** Q lacks context.

Not that high.


** Worthless, opinionated remark .

What else - from a brain dead, pommy, autistic freak.


His Philips bulb wasn't made in China.


** The moon has no oxygen ...

Go choke to death - you vile pile of narcissistic,

ASD fucked pommy excrement. !!!

Same goes for your wife, kids family etc.

Graham Stevenson is PURE EVIL





........ Phil
 
E

Eeyore

Jan 1, 1970
0
Phil said:
"Eeysore Fuckwit TROLL "


** Err - right

- so onboard some NOS, Soviet Cold War era space vehicle

headed for the sun is the fuckwit GREENIE way - OK ??

I'm simply pointing out a fact. It's entirely possible I think it's daft too.

Graham
 
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