Radio Interference
 

In article
,
Bushcraftgregg wrote:

On Mar 6, 8:20*pm, Telamon
wrote:
In article ,

*dave wrote:
Telamon wrote:
In article ,
*"McFerg" wrote:

These new energy efficient household bulbs really cause a lot
interference on my medium wave and the lower short wave bands.
Is there anything I can do to eliminate it, short of switching
back to the old filament type

No easy way. You are better off with the incandescent bulbs as
those screw type florescence are a mercury hazard and depending
on the instillation they will not last long.

The best use for the energy efficient bulbs are ones that are
not switched on/off often and are mounted upright. That
eliminates most uses.

A better system would be low voltage quartz or LED type
lighting but that takes rewiring the house.

Incandescent bulbs release way more mercury than the occasional
broken CFL.

You will have to explain that one.

I turn mine on and off just like any other lamp; *no ill effects.

If you use them upside down in any ceiling fixture you will shorten
the life of the bulb.

I use them vertically, horizontally, and at various angles
in-between. Again, no ill effects.

If you are turning them on and off all the time you will shorten
the life of the bulb.

There are LED lamps that run on 110 VAC.

Those have switching power supplies that should be avoided.


Indeed. We found out the hard way with our patio light, it is upside
down. After going through three bulbs in 7-8 maybe nine months, I
switched. Maybe the moisture of being outside also had something to
do with it.

That is true what you said, I've never read that but the two bulbs we
do use in the house are vertical and we leave them on all the time
and as far as I know not one of them has expired yet.

I'm still waiting for Dave to explain the mercury in an incandescent
bulb.

The socket at the top configuration subjects the electronics and the
filaments to more heat, aging them faster.

Starting the bulb up puts a lot of stress on the circuits and filaments,
actually the only time they are really used, and wears them out.

The bulbs don't like repeated hot to cold temperature extremes either.

--
Telamon
Ventura, California

Radio Interference
 

In article ,
says...
Back around 1946, somebody dared me to unscrew that INCANDESCENT
Lightbulb and stick my finger in there.Of course, I did exactly that.

So, it started at a young age?

I
have a very old floor lamp which has a telescoping gooseneck thingy on
it, I use it by doggy's couch.This afternoon, the G.E.60 watt
INCANDESCENT Lightbulb blew out, I had been using that INCANDESCENT
Light bulb for about two months or more before it blew out.I Don't
intend to Ever replace all of my INCANDESCENT Lightbulbs with
flouarescent lightbulbe, I don't give a damn how ''efficient'' they are.

How special.

cuhulin
.................................................. .
Say, did you know a Bumble Bee can sting you twice? ~ Walter Brennan
.................................................. .



--
BDK

BDK Klan leader?
kOOk Magnet!
NJJ CLUB #1
Shillmaster

Radio Interference
 

There are LED lamps that run on 110 VAC.

Those have switching power supplies that should be avoided.


None of my 120 (or 220) volt LED lamps use a switching supply. They use a
simple series string with a rectifier, dropping resistor and filter cap.

Radio Interference
 

Bushcraftgregg wrote:
On Mar 6, 8:20 pm, Telamon
wrote:
In article ,





dave wrote:
Telamon wrote:
In article ,
"McFerg" wrote:
These new energy efficient household bulbs really cause a lot interference
on my medium wave and the lower short wave bands. Is there anything I can
do
to eliminate it, short of switching back to the old filament type
No easy way. You are better off with the incandescent bulbs as those
screw type florescence are a mercury hazard and depending on the
instillation they will not last long.
The best use for the energy efficient bulbs are ones that are not
switched on/off often and are mounted upright. That eliminates most uses.
A better system would be low voltage quartz or LED type lighting but
that takes rewiring the house.
Incandescent bulbs release way more mercury than the occasional broken
CFL.
You will have to explain that one.

Most electricity is produced by burning coal, which contains mercury.
There is mercury in the smokestack emissions from coal plants. The
extra mercury released by the power plant in the lifetime of an Edison
lamp is more than that spilled by a broken CFL. Simply a matter of
arithmetic.

I turn mine on and off just like any other lamp; no ill effects.
If you use them upside down in any ceiling fixture you will shorten the
life of the bulb.

That's a heat thing. You can use them ballast up, but you have to
ensure adequate ventilation of the ballast.

I use them vertically, horizontally, and at various angles in-between.
Again, no ill effects.
If you are turning them on and off all the time you will shorten the
life of the bulb.

You're turn for a scientific explanation.

There are LED lamps that run on 110 VAC.
Those have switching power supplies that should be avoided.
Modern switch-mode power supplies are usually carefully tailored to the
load and any RF emission is minimized; not just for Part 15, but because
it is less efficient to waste power making radio waves.

Radio Interference
 

dave wrote:
Bushcraftgregg wrote:
On Mar 6, 8:20 pm, Telamon
wrote:
In article ,





dave wrote:
Telamon wrote:
In article ,
"McFerg" wrote:
These new energy efficient household bulbs really cause a lot
interference
on my medium wave and the lower short wave bands. Is there
anything I can
do
to eliminate it, short of switching back to the old filament type
No easy way. You are better off with the incandescent bulbs as those
screw type florescence are a mercury hazard and depending on the
instillation they will not last long.
The best use for the energy efficient bulbs are ones that are not
switched on/off often and are mounted upright. That eliminates most
uses.
A better system would be low voltage quartz or LED type lighting but
that takes rewiring the house.
Incandescent bulbs release way more mercury than the occasional broken
CFL.
You will have to explain that one.

Most electricity is produced by burning coal, which contains mercury.
There is mercury in the smokestack emissions from coal plants. The
extra mercury released by the power plant in the lifetime of an Edison
lamp is more than that spilled by a broken CFL. Simply a matter of
arithmetic.

I turn mine on and off just like any other lamp; no ill effects.
If you use them upside down in any ceiling fixture you will shorten the
life of the bulb.

That's a heat thing. You can use them ballast up, but you have to
ensure adequate ventilation of the ballast.

I use them vertically, horizontally, and at various angles in-between.
Again, no ill effects.
If you are turning them on and off all the time you will shorten the
life of the bulb.

You're turn for a scientific explanation.

Wow. I must not have been awake yet. Y-O-U-R.

I did a little looking up. The minimum recommended "on" period is 15
minutes, which is not long enough for the terlet, but I still get good
service from the CFLs in there. I change them every 2 or 3 years maybe.
The totals hours on is probably low, but they certainly don't require
a lot of attention.
There are LED lamps that run on 110 VAC.
Those have switching power supplies that should be avoided.
Modern switch-mode power supplies are usually carefully tailored to the
load and any RF emission is minimized; not just for Part 15, but because
it is less efficient to waste power making radio waves.

Radio Interference
 

In article ,
"Brenda Ann" wrote:


There are LED lamps that run on 110 VAC.

Those have switching power supplies that should be avoided.


None of my 120 (or 220) volt LED lamps use a switching supply. They use a
simple series string with a rectifier, dropping resistor and filter cap.

That's fine but what do you think that diode is doing every 60Hz cycle?
It's switching on and off generating broadband noise. You know how some
white noise generator sources are made right?

--
Telamon
Ventura, California

Radio Interference
 

McFerg wrote:
These new energy efficient household bulbs really cause a lot interference
on my medium wave and the lower short wave bands. Is there anything I can do
to eliminate it, short of switching back to the old filament type


I'd switch brands. I have, in over 20 years of using small
fluorescents, found very few that made electrical noise. What brand
lamps are you using? You're not trying to use them with dimmers, are you?


Agreed... I've had mini-fluors in a standard lamp and a table lamp,
both within a metre either side of my Eton E1, for several years with
only one instance of a "noisy" tube. That's now in a lamp in another
room where it's seldom turned on.

Radio Interference
 

In article ,
dave wrote:

Bushcraftgregg wrote:
On Mar 6, 8:20 pm, Telamon
wrote:
In article ,





dave wrote:
Telamon wrote:
In article ,
"McFerg" wrote:
These new energy efficient household bulbs really cause a lot
interference on my medium wave and the lower short wave bands.
Is there anything I can do to eliminate it, short of switching
back to the old filament type
No easy way. You are better off with the incandescent bulbs as
those screw type florescence are a mercury hazard and depending
on the instillation they will not last long. The best use for
the energy efficient bulbs are ones that are not switched on/off
often and are mounted upright. That eliminates most uses. A
better system would be low voltage quartz or LED type lighting
but that takes rewiring the house.
Incandescent bulbs release way more mercury than the occasional
broken CFL.
You will have to explain that one.

Most electricity is produced by burning coal, which contains mercury.
There is mercury in the smokestack emissions from coal plants. The
extra mercury released by the power plant in the lifetime of an Edison
lamp is more than that spilled by a broken CFL. Simply a matter of
arithmetic.

That's sounds like environmental BS arithmetic like the man made global
warming BS. I don't want a broken bulb with mercury in it in my house
and that doesn't take any BS arithmetic.

I turn mine on and off just like any other lamp; no ill effects.
If you use them upside down in any ceiling fixture you will shorten the
life of the bulb.

That's a heat thing. You can use them ballast up, but you have to
ensure adequate ventilation of the ballast.

I posted that already. The electronics up will be hotter than down and
this shortens the life of the bulbs as people are finding out.

I use them vertically, horizontally, and at various angles
in-between. Again, no ill effects.
If you are turning them on and off all the time you will shorten
the life of the bulb.

You're turn for a scientific explanation.

I already explained this. Your longest life will occur with the bulb
pointed up, which is contrary to ceiling mount bulbs. You will have
longer life in a standard table lamp.

There are LED lamps that run on 110 VAC.
Those have switching power supplies that should be avoided.

Modern switch-mode power supplies are usually carefully tailored to
the load and any RF emission is minimized; not just for Part 15, but
because it is less efficient to waste power making radio waves.

Only some of the more expensive brands have done this. Other brands
(most) made in China haven't bothered.

I would only buy these bulbs by manufacturers that guarantee the spectra
of the bulbs. Some of these bulbs put out more UV than they are supposed
to, which can cause cancer.

--
Telamon
Ventura, California

Radio Interference
 

In article ,
dave wrote:

dave wrote:
Bushcraftgregg wrote:
On Mar 6, 8:20 pm, Telamon
wrote:
In article ,





dave wrote:
Telamon wrote:
In article ,
"McFerg" wrote:
These new energy efficient household bulbs really cause a lot
interference
on my medium wave and the lower short wave bands. Is there
anything I can
do
to eliminate it, short of switching back to the old filament type
No easy way. You are better off with the incandescent bulbs as those
screw type florescence are a mercury hazard and depending on the
instillation they will not last long.
The best use for the energy efficient bulbs are ones that are not
switched on/off often and are mounted upright. That eliminates most
uses.
A better system would be low voltage quartz or LED type lighting but
that takes rewiring the house.
Incandescent bulbs release way more mercury than the occasional broken
CFL.
You will have to explain that one.

Most electricity is produced by burning coal, which contains mercury.
There is mercury in the smokestack emissions from coal plants. The
extra mercury released by the power plant in the lifetime of an Edison
lamp is more than that spilled by a broken CFL. Simply a matter of
arithmetic.

I turn mine on and off just like any other lamp; no ill effects.
If you use them upside down in any ceiling fixture you will shorten the
life of the bulb.

That's a heat thing. You can use them ballast up, but you have to
ensure adequate ventilation of the ballast.

I use them vertically, horizontally, and at various angles in-between.
Again, no ill effects.
If you are turning them on and off all the time you will shorten the
life of the bulb.

You're turn for a scientific explanation.

Wow. I must not have been awake yet. Y-O-U-R.

I did a little looking up. The minimum recommended "on" period is 15
minutes, which is not long enough for the terlet, but I still get good
service from the CFLs in there. I change them every 2 or 3 years maybe.
The totals hours on is probably low, but they certainly don't require
a lot of attention.

More important than the grammar is the environmental BS arithmetic.

--
Telamon
Ventura, California

Radio Interference
 

In article ,
Nobody wrote:

McFerg wrote:
These new energy efficient household bulbs really cause a lot interference
on my medium wave and the lower short wave bands. Is there anything I can
do
to eliminate it, short of switching back to the old filament type


I'd switch brands. I have, in over 20 years of using small
fluorescents, found very few that made electrical noise. What brand
lamps are you using? You're not trying to use them with dimmers, are you?


Agreed... I've had mini-fluors in a standard lamp and a table lamp,
both within a metre either side of my Eton E1, for several years with
only one instance of a "noisy" tube. That's now in a lamp in another
room where it's seldom turned on.

Those are not the same thing as the CFL's being discussed. The older
lamps have low frequency ballasts where the only radio noise they
generate is at startup. The noise stops as soon as the bulb plasma is
conducting.

The current generation of high efficiency bulbs use a high frequency
oscillator to excite the plasma in the bulb and this is a constant
source of interference depending on brand and location. This is an
insidious problem because it is location dependent.

--
Telamon
Ventura, California