Funny thing....my CFL's don't make any noise no matter who I listen to.
Dave Harmon
K6XYZ[at]sbcglobal[dot]net
Sperry, Ok.
-----Original Message-----
From: rfi-bounces@contesting.com [mailto:rfi-bounces@contesting.com] On
Behalf Of Jimk8mr@aol.com
Sent: Monday, November 29, 2010 6:00 PM
To: rfi@contesting.com
Subject: Re: [RFI] Bulb rumors.
Last week I was doing some RFI detective work, focusing on 15 meters using
an IC-R10 strapped to the end of a 4 foot pole. We did find the source of
the RFI (quite a different story, which I may post about later), but in the
process I passed the radio near several CFLs, both the regular sort and
also CFL outdoor flood lights. Within about a foot of the bulbs I could
hear
noise, but beyond that nothing.
I have a number of CFLs around my house, and have not noticed any RFI from
them.
The interesting thing about these bulbs is that it seems the more time one
spends listening to Rush Limbaugh, Glen Beck, or Fox News, the more one
seems to experience RFI from them.
73 - Jim K8MR
In a message dated 11/29/2010 6:17:08 P.M. Eastern Standard Time,
ingraham.ma.ultranet@rcn.com writes:
My experience with CFLs is quite different from yours. (I have no
experience with LED replacements.)
> Noisey, electrically
Not here, so far.
> and mechanically,
Not that I've seen.
(Yes, I can detect a very slight hum from CFLs, and from many
incandescents too.)
> degrade rapidly over
> time,
Not here.
> have to have special housings or mounting postitions to prevent the
> POS power supplies from cooking,
No special housings here.
I've read about CFLs that cooked, but I haven't had any do that yet.
Ours are barely above room temp.
I think this issue may be a quality control problem, or perhaps lousy
circuit designs, not a fault of CFLs per se.
> won't run when cold,
The ones I stuck outside (NOT made for cold weather) work fine winter
and summer, aside from needing a few seconds to reach normal
brightness in the winter.
> take tens of seconds
> to several minutes to come up to brightness,
The earliest CFLs I bought, about 20? years ago, do that; but the rest
of them do not, except for the ones I put outdoors. Those start up
right away but take about 15 seconds to come up to brightness on cold
winter nights.
> they cost 32 times what they intended to replace,
They are fairly cheap here. But I haven't bought any in years ...
haven't needed to!
> can't be disposed of as they are considered toxic waste,
That one is the Really Big Problem.
> The Govt. is now creating another industry (CFL disposal)
And their actions drove the remaining American incandescent bulb
makers to close down.
My location is not free of RFI; but none (ore very little) of it seems
to be coming from CFLs, and not from those in my home.
Regards,
Andy
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|