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.